Home / 31,408.97-47,118.13-10,345.13

Finding the Fourth Proportional to 31,408.97, 47,118.13 and 10,345.13

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Solution

The fourth proportional to 31,408.97, 47,118.13 and 10,345.13 is: 15,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,408.97 : 47,118.13 = 10,345.13 : x
  2. Step 2: Convert to fraction form
    31,408.97/47,118.13 = 10,345.13/x
  3. Step 3: Cross multiply
    31,408.97x = 47,118.13 × 10,345.13
  4. Step 4: Simplify right side
    31,408.97x = 487,442,962.93
  5. Step 5: Solve for x
    x = 487,442,962.93/31,408.97
  6. Step 6: Final answer
    x = 15,519.23

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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.