Home / 39,240.47-54,152.94-21,336.71

Finding the Fourth Proportional to 39,240.47, 54,152.94 and 21,336.71

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Solution

The fourth proportional to 39,240.47, 54,152.94 and 21,336.71 is: 29,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240.47 : 54,152.94 = 21,336.71 : x
  2. Step 2: Convert to fraction form
    39,240.47/54,152.94 = 21,336.71/x
  3. Step 3: Cross multiply
    39,240.47x = 54,152.94 × 21,336.71
  4. Step 4: Simplify right side
    39,240.47x = 1,155,445,305.66
  5. Step 5: Solve for x
    x = 1,155,445,305.66/39,240.47
  6. Step 6: Final answer
    x = 29,445.25

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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.