Home / 31,387.64-47,081.82-10,329.08

Finding the Fourth Proportional to 31,387.64, 47,081.82 and 10,329.08

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Solution

The fourth proportional to 31,387.64, 47,081.82 and 10,329.08 is: 15,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.64 : 47,081.82 = 10,329.08 : x
  2. Step 2: Convert to fraction form
    31,387.64/47,081.82 = 10,329.08/x
  3. Step 3: Cross multiply
    31,387.64x = 47,081.82 × 10,329.08
  4. Step 4: Simplify right side
    31,387.64x = 486,311,885.33
  5. Step 5: Solve for x
    x = 486,311,885.33/31,387.64
  6. Step 6: Final answer
    x = 15,493.74

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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.