Home / 28,499.28-39,328.96-15,753.44

Finding the Fourth Proportional to 28,499.28, 39,328.96 and 15,753.44

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Solution

The fourth proportional to 28,499.28, 39,328.96 and 15,753.44 is: 21,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.28 : 39,328.96 = 15,753.44 : x
  2. Step 2: Convert to fraction form
    28,499.28/39,328.96 = 15,753.44/x
  3. Step 3: Cross multiply
    28,499.28x = 39,328.96 × 15,753.44
  4. Step 4: Simplify right side
    28,499.28x = 619,566,411.62
  5. Step 5: Solve for x
    x = 619,566,411.62/28,499.28
  6. Step 6: Final answer
    x = 21,739.72

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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.