Home / 28,250-38,983.66-15,502.88

Finding the Fourth Proportional to 28,250, 38,983.66 and 15,502.88

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Solution

The fourth proportional to 28,250, 38,983.66 and 15,502.88 is: 21,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250 : 38,983.66 = 15,502.88 : x
  2. Step 2: Convert to fraction form
    28,250/38,983.66 = 15,502.88/x
  3. Step 3: Cross multiply
    28,250x = 38,983.66 × 15,502.88
  4. Step 4: Simplify right side
    28,250x = 604,359,002.94
  5. Step 5: Solve for x
    x = 604,359,002.94/28,250
  6. Step 6: Final answer
    x = 21,393.24

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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.