Home / 39,811.92-59,728.12-28,580.28

Finding the Fourth Proportional to 39,811.92, 59,728.12 and 28,580.28

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Solution

The fourth proportional to 39,811.92, 59,728.12 and 28,580.28 is: 42,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.92 : 59,728.12 = 28,580.28 : x
  2. Step 2: Convert to fraction form
    39,811.92/59,728.12 = 28,580.28/x
  3. Step 3: Cross multiply
    39,811.92x = 59,728.12 × 28,580.28
  4. Step 4: Simplify right side
    39,811.92x = 1,707,046,393.47
  5. Step 5: Solve for x
    x = 1,707,046,393.47/39,811.92
  6. Step 6: Final answer
    x = 42,877.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.