Home / 39,710.66-54,801.60-21,805.74

Finding the Fourth Proportional to 39,710.66, 54,801.60 and 21,805.74

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Solution

The fourth proportional to 39,710.66, 54,801.60 and 21,805.74 is: 30,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.66 : 54,801.60 = 21,805.74 : x
  2. Step 2: Convert to fraction form
    39,710.66/54,801.60 = 21,805.74/x
  3. Step 3: Cross multiply
    39,710.66x = 54,801.60 × 21,805.74
  4. Step 4: Simplify right side
    39,710.66x = 1,194,989,359.41
  5. Step 5: Solve for x
    x = 1,194,989,359.41/39,710.66
  6. Step 6: Final answer
    x = 30,092.41

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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.