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Finding the Fourth Proportional to 28,649.27, 42,958.17 and 9,927.63

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Solution

The fourth proportional to 28,649.27, 42,958.17 and 9,927.63 is: 14,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.27 : 42,958.17 = 9,927.63 : x
  2. Step 2: Convert to fraction form
    28,649.27/42,958.17 = 9,927.63/x
  3. Step 3: Cross multiply
    28,649.27x = 42,958.17 × 9,927.63
  4. Step 4: Simplify right side
    28,649.27x = 426,472,817.24
  5. Step 5: Solve for x
    x = 426,472,817.24/28,649.27
  6. Step 6: Final answer
    x = 14,885.99

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1.5x scale

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.