Home / 28,252.52-38,988.50-15,677.28

Finding the Fourth Proportional to 28,252.52, 38,988.50 and 15,677.28

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Solution

The fourth proportional to 28,252.52, 38,988.50 and 15,677.28 is: 21,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.52 : 38,988.50 = 15,677.28 : x
  2. Step 2: Convert to fraction form
    28,252.52/38,988.50 = 15,677.28/x
  3. Step 3: Cross multiply
    28,252.52x = 38,988.50 × 15,677.28
  4. Step 4: Simplify right side
    28,252.52x = 611,233,631.28
  5. Step 5: Solve for x
    x = 611,233,631.28/28,252.52
  6. Step 6: Final answer
    x = 21,634.66

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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.