Home / 39,153.12-54,031.37-23,240.76

Finding the Fourth Proportional to 39,153.12, 54,031.37 and 23,240.76

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Solution

The fourth proportional to 39,153.12, 54,031.37 and 23,240.76 is: 32,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.12 : 54,031.37 = 23,240.76 : x
  2. Step 2: Convert to fraction form
    39,153.12/54,031.37 = 23,240.76/x
  3. Step 3: Cross multiply
    39,153.12x = 54,031.37 × 23,240.76
  4. Step 4: Simplify right side
    39,153.12x = 1,255,730,102.64
  5. Step 5: Solve for x
    x = 1,255,730,102.64/39,153.12
  6. Step 6: Final answer
    x = 32,072.29

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Half scale
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Double scale
Find fourth proportional to 39,154.12, 54,032.75 and 23,241.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.