Home / 27,121.96-37,402.02-21,151.46

Finding the Fourth Proportional to 27,121.96, 37,402.02 and 21,151.46

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Solution

The fourth proportional to 27,121.96, 37,402.02 and 21,151.46 is: 29,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.96 : 37,402.02 = 21,151.46 : x
  2. Step 2: Convert to fraction form
    27,121.96/37,402.02 = 21,151.46/x
  3. Step 3: Cross multiply
    27,121.96x = 37,402.02 × 21,151.46
  4. Step 4: Simplify right side
    27,121.96x = 791,107,329.95
  5. Step 5: Solve for x
    x = 791,107,329.95/27,121.96
  6. Step 6: Final answer
    x = 29,168.52

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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.