Home / 31,801.24-47,701.86-12,079.75

Finding the Fourth Proportional to 31,801.24, 47,701.86 and 12,079.75

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Solution

The fourth proportional to 31,801.24, 47,701.86 and 12,079.75 is: 18,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,801.24 : 47,701.86 = 12,079.75 : x
  2. Step 2: Convert to fraction form
    31,801.24/47,701.86 = 12,079.75/x
  3. Step 3: Cross multiply
    31,801.24x = 47,701.86 × 12,079.75
  4. Step 4: Simplify right side
    31,801.24x = 576,226,543.34
  5. Step 5: Solve for x
    x = 576,226,543.34/31,801.24
  6. Step 6: Final answer
    x = 18,119.63

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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.