Home / 31,384.71-47,067.08-10,319.90

Finding the Fourth Proportional to 31,384.71, 47,067.08 and 10,319.90

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Solution

The fourth proportional to 31,384.71, 47,067.08 and 10,319.90 is: 15,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.71 : 47,067.08 = 10,319.90 : x
  2. Step 2: Convert to fraction form
    31,384.71/47,067.08 = 10,319.90/x
  3. Step 3: Cross multiply
    31,384.71x = 47,067.08 × 10,319.90
  4. Step 4: Simplify right side
    31,384.71x = 485,727,271.96
  5. Step 5: Solve for x
    x = 485,727,271.96/31,384.71
  6. Step 6: Final answer
    x = 15,476.56

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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.