Home / 31,565.47-47,355.50-9,378.36

Finding the Fourth Proportional to 31,565.47, 47,355.50 and 9,378.36

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Solution

The fourth proportional to 31,565.47, 47,355.50 and 9,378.36 is: 14,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,565.47 : 47,355.50 = 9,378.36 : x
  2. Step 2: Convert to fraction form
    31,565.47/47,355.50 = 9,378.36/x
  3. Step 3: Cross multiply
    31,565.47x = 47,355.50 × 9,378.36
  4. Step 4: Simplify right side
    31,565.47x = 444,116,926.98
  5. Step 5: Solve for x
    x = 444,116,926.98/31,565.47
  6. Step 6: Final answer
    x = 14,069.71

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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.