Home / 30,862.47-42,590.10-16,715.28

Finding the Fourth Proportional to 30,862.47, 42,590.10 and 16,715.28

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Solution

The fourth proportional to 30,862.47, 42,590.10 and 16,715.28 is: 23,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.47 : 42,590.10 = 16,715.28 : x
  2. Step 2: Convert to fraction form
    30,862.47/42,590.10 = 16,715.28/x
  3. Step 3: Cross multiply
    30,862.47x = 42,590.10 × 16,715.28
  4. Step 4: Simplify right side
    30,862.47x = 711,905,446.73
  5. Step 5: Solve for x
    x = 711,905,446.73/30,862.47
  6. Step 6: Final answer
    x = 23,067.03

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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.