Home / 28,528.48-39,363.12-15,952.80

Finding the Fourth Proportional to 28,528.48, 39,363.12 and 15,952.80

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Solution

The fourth proportional to 28,528.48, 39,363.12 and 15,952.80 is: 22,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.48 : 39,363.12 = 15,952.80 : x
  2. Step 2: Convert to fraction form
    28,528.48/39,363.12 = 15,952.80/x
  3. Step 3: Cross multiply
    28,528.48x = 39,363.12 × 15,952.80
  4. Step 4: Simplify right side
    28,528.48x = 627,951,980.74
  5. Step 5: Solve for x
    x = 627,951,980.74/28,528.48
  6. Step 6: Final answer
    x = 22,011.41

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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.