Home / 39,930.72-55,107.36-23,166.24

Finding the Fourth Proportional to 39,930.72, 55,107.36 and 23,166.24

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Solution

The fourth proportional to 39,930.72, 55,107.36 and 23,166.24 is: 31,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.72 : 55,107.36 = 23,166.24 : x
  2. Step 2: Convert to fraction form
    39,930.72/55,107.36 = 23,166.24/x
  3. Step 3: Cross multiply
    39,930.72x = 55,107.36 × 23,166.24
  4. Step 4: Simplify right side
    39,930.72x = 1,276,630,327.53
  5. Step 5: Solve for x
    x = 1,276,630,327.53/39,930.72
  6. Step 6: Final answer
    x = 31,971.13

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Double scale
Find fourth proportional to 39,931.72, 55,108.74 and 23,167.24
Similar ratio
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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.