Home / 39,490.92-54,542.73-28,783.53

Finding the Fourth Proportional to 39,490.92, 54,542.73 and 28,783.53

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Solution

The fourth proportional to 39,490.92, 54,542.73 and 28,783.53 is: 39,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.92 : 54,542.73 = 28,783.53 : x
  2. Step 2: Convert to fraction form
    39,490.92/54,542.73 = 28,783.53/x
  3. Step 3: Cross multiply
    39,490.92x = 54,542.73 × 28,783.53
  4. Step 4: Simplify right side
    39,490.92x = 1,569,932,305.24
  5. Step 5: Solve for x
    x = 1,569,932,305.24/39,490.92
  6. Step 6: Final answer
    x = 39,754.26

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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.