Home / 27,151.20-37,499.76-21,630.24

Finding the Fourth Proportional to 27,151.20, 37,499.76 and 21,630.24

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Solution

The fourth proportional to 27,151.20, 37,499.76 and 21,630.24 is: 29,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.20 : 37,499.76 = 21,630.24 : x
  2. Step 2: Convert to fraction form
    27,151.20/37,499.76 = 21,630.24/x
  3. Step 3: Cross multiply
    27,151.20x = 37,499.76 × 21,630.24
  4. Step 4: Simplify right side
    27,151.20x = 811,128,808.74
  5. Step 5: Solve for x
    x = 811,128,808.74/27,151.20
  6. Step 6: Final answer
    x = 29,874.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.