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Finding the Fourth Proportional to 28,337.54, 42,510.02 and 9,355.86

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Solution

The fourth proportional to 28,337.54, 42,510.02 and 9,355.86 is: 14,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.54 : 42,510.02 = 9,355.86 : x
  2. Step 2: Convert to fraction form
    28,337.54/42,510.02 = 9,355.86/x
  3. Step 3: Cross multiply
    28,337.54x = 42,510.02 × 9,355.86
  4. Step 4: Simplify right side
    28,337.54x = 397,717,748.94
  5. Step 5: Solve for x
    x = 397,717,748.94/28,337.54
  6. Step 6: Final answer
    x = 14,035.02

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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.