Home / 31,443.90-47,158.56-13,904.16

Finding the Fourth Proportional to 31,443.90, 47,158.56 and 13,904.16

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Solution

The fourth proportional to 31,443.90, 47,158.56 and 13,904.16 is: 20,853.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443.90 : 47,158.56 = 13,904.16 : x
  2. Step 2: Convert to fraction form
    31,443.90/47,158.56 = 13,904.16/x
  3. Step 3: Cross multiply
    31,443.90x = 47,158.56 × 13,904.16
  4. Step 4: Simplify right side
    31,443.90x = 655,700,163.61
  5. Step 5: Solve for x
    x = 655,700,163.61/31,443.90
  6. Step 6: Final answer
    x = 20,853.02

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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.