Home / 39,875.20-59,877.60-28,859.20

Finding the Fourth Proportional to 39,875.20, 59,877.60 and 28,859.20

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Solution

The fourth proportional to 39,875.20, 59,877.60 and 28,859.20 is: 43,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.20 : 59,877.60 = 28,859.20 : x
  2. Step 2: Convert to fraction form
    39,875.20/59,877.60 = 28,859.20/x
  3. Step 3: Cross multiply
    39,875.20x = 59,877.60 × 28,859.20
  4. Step 4: Simplify right side
    39,875.20x = 1,728,019,633.92
  5. Step 5: Solve for x
    x = 1,728,019,633.92/39,875.20
  6. Step 6: Final answer
    x = 43,335.70

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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.