Home / 47,320.72-70,981.08-12,260.38

Finding the Fourth Proportional to 47,320.72, 70,981.08 and 12,260.38

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Solution

The fourth proportional to 47,320.72, 70,981.08 and 12,260.38 is: 18,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,320.72 : 70,981.08 = 12,260.38 : x
  2. Step 2: Convert to fraction form
    47,320.72/70,981.08 = 12,260.38/x
  3. Step 3: Cross multiply
    47,320.72x = 70,981.08 × 12,260.38
  4. Step 4: Simplify right side
    47,320.72x = 870,255,013.61
  5. Step 5: Solve for x
    x = 870,255,013.61/47,320.72
  6. Step 6: Final answer
    x = 18,390.57

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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.