Home / 21,209.39-31,818.19-8,060.74

Finding the Fourth Proportional to 21,209.39, 31,818.19 and 8,060.74

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Solution

The fourth proportional to 21,209.39, 31,818.19 and 8,060.74 is: 12,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.39 : 31,818.19 = 8,060.74 : x
  2. Step 2: Convert to fraction form
    21,209.39/31,818.19 = 8,060.74/x
  3. Step 3: Cross multiply
    21,209.39x = 31,818.19 × 8,060.74
  4. Step 4: Simplify right side
    21,209.39x = 256,478,167.43
  5. Step 5: Solve for x
    x = 256,478,167.43/21,209.39
  6. Step 6: Final answer
    x = 12,092.67

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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.