Home / 20,711.91-31,064.76-6,670.08

Finding the Fourth Proportional to 20,711.91, 31,064.76 and 6,670.08

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Solution

The fourth proportional to 20,711.91, 31,064.76 and 6,670.08 is: 10,004.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.91 : 31,064.76 = 6,670.08 : x
  2. Step 2: Convert to fraction form
    20,711.91/31,064.76 = 6,670.08/x
  3. Step 3: Cross multiply
    20,711.91x = 31,064.76 × 6,670.08
  4. Step 4: Simplify right side
    20,711.91x = 207,204,434.38
  5. Step 5: Solve for x
    x = 207,204,434.38/20,711.91
  6. Step 6: Final answer
    x = 10,004.12

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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.