Home / 28,663.76-42,951.80-12,014.71

Finding the Fourth Proportional to 28,663.76, 42,951.80 and 12,014.71

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Solution

The fourth proportional to 28,663.76, 42,951.80 and 12,014.71 is: 18,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.76 : 42,951.80 = 12,014.71 : x
  2. Step 2: Convert to fraction form
    28,663.76/42,951.80 = 12,014.71/x
  3. Step 3: Cross multiply
    28,663.76x = 42,951.80 × 12,014.71
  4. Step 4: Simplify right side
    28,663.76x = 516,053,551.45
  5. Step 5: Solve for x
    x = 516,053,551.45/28,663.76
  6. Step 6: Final answer
    x = 18,003.70

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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.