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Finding the Fourth Proportional to 30,560.29, 45,840.47 and 8,373.86

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Solution

The fourth proportional to 30,560.29, 45,840.47 and 8,373.86 is: 12,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.29 : 45,840.47 = 8,373.86 : x
  2. Step 2: Convert to fraction form
    30,560.29/45,840.47 = 8,373.86/x
  3. Step 3: Cross multiply
    30,560.29x = 45,840.47 × 8,373.86
  4. Step 4: Simplify right side
    30,560.29x = 383,861,678.11
  5. Step 5: Solve for x
    x = 383,861,678.11/30,560.29
  6. Step 6: Final answer
    x = 12,560.80

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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.