Home / 31,964.86-47,945.55-9,778.23

Finding the Fourth Proportional to 31,964.86, 47,945.55 and 9,778.23

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Solution

The fourth proportional to 31,964.86, 47,945.55 and 9,778.23 is: 14,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,964.86 : 47,945.55 = 9,778.23 : x
  2. Step 2: Convert to fraction form
    31,964.86/47,945.55 = 9,778.23/x
  3. Step 3: Cross multiply
    31,964.86x = 47,945.55 × 9,778.23
  4. Step 4: Simplify right side
    31,964.86x = 468,822,652.04
  5. Step 5: Solve for x
    x = 468,822,652.04/31,964.86
  6. Step 6: Final answer
    x = 14,666.82

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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.