Home / 28,248.08-38,983.56-16,915.42

Finding the Fourth Proportional to 28,248.08, 38,983.56 and 16,915.42

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Solution

The fourth proportional to 28,248.08, 38,983.56 and 16,915.42 is: 23,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.08 : 38,983.56 = 16,915.42 : x
  2. Step 2: Convert to fraction form
    28,248.08/38,983.56 = 16,915.42/x
  3. Step 3: Cross multiply
    28,248.08x = 38,983.56 × 16,915.42
  4. Step 4: Simplify right side
    28,248.08x = 659,423,151.66
  5. Step 5: Solve for x
    x = 659,423,151.66/28,248.08
  6. Step 6: Final answer
    x = 23,344.00

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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.