Home / 28,634.70-42,941.76-9,909.66

Finding the Fourth Proportional to 28,634.70, 42,941.76 and 9,909.66

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Solution

The fourth proportional to 28,634.70, 42,941.76 and 9,909.66 is: 14,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.70 : 42,941.76 = 9,909.66 : x
  2. Step 2: Convert to fraction form
    28,634.70/42,941.76 = 9,909.66/x
  3. Step 3: Cross multiply
    28,634.70x = 42,941.76 × 9,909.66
  4. Step 4: Simplify right side
    28,634.70x = 425,538,179.47
  5. Step 5: Solve for x
    x = 425,538,179.47/28,634.70
  6. Step 6: Final answer
    x = 14,860.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.