Home / 31,461.38-47,191.85-12,741.13

Finding the Fourth Proportional to 31,461.38, 47,191.85 and 12,741.13

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Solution

The fourth proportional to 31,461.38, 47,191.85 and 12,741.13 is: 19,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.38 : 47,191.85 = 12,741.13 : x
  2. Step 2: Convert to fraction form
    31,461.38/47,191.85 = 12,741.13/x
  3. Step 3: Cross multiply
    31,461.38x = 47,191.85 × 12,741.13
  4. Step 4: Simplify right side
    31,461.38x = 601,277,538.85
  5. Step 5: Solve for x
    x = 601,277,538.85/31,461.38
  6. Step 6: Final answer
    x = 19,111.61

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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.