Home / 39,415.56-54,394.74-22,419.37

Finding the Fourth Proportional to 39,415.56, 54,394.74 and 22,419.37

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Solution

The fourth proportional to 39,415.56, 54,394.74 and 22,419.37 is: 30,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,415.56 : 54,394.74 = 22,419.37 : x
  2. Step 2: Convert to fraction form
    39,415.56/54,394.74 = 22,419.37/x
  3. Step 3: Cross multiply
    39,415.56x = 54,394.74 × 22,419.37
  4. Step 4: Simplify right side
    39,415.56x = 1,219,495,648.21
  5. Step 5: Solve for x
    x = 1,219,495,648.21/39,415.56
  6. Step 6: Final answer
    x = 30,939.45

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Double scale
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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.