Home / 31,399.33-47,077.59-10,331.64

Finding the Fourth Proportional to 31,399.33, 47,077.59 and 10,331.64

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Solution

The fourth proportional to 31,399.33, 47,077.59 and 10,331.64 is: 15,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.33 : 47,077.59 = 10,331.64 : x
  2. Step 2: Convert to fraction form
    31,399.33/47,077.59 = 10,331.64/x
  3. Step 3: Cross multiply
    31,399.33x = 47,077.59 × 10,331.64
  4. Step 4: Simplify right side
    31,399.33x = 486,388,711.95
  5. Step 5: Solve for x
    x = 486,388,711.95/31,399.33
  6. Step 6: Final answer
    x = 15,490.42

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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.