Home / 22,042.12-30,418.95-13,541.53

Finding the Fourth Proportional to 22,042.12, 30,418.95 and 13,541.53

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Solution

The fourth proportional to 22,042.12, 30,418.95 and 13,541.53 is: 18,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.12 : 30,418.95 = 13,541.53 : x
  2. Step 2: Convert to fraction form
    22,042.12/30,418.95 = 13,541.53/x
  3. Step 3: Cross multiply
    22,042.12x = 30,418.95 × 13,541.53
  4. Step 4: Simplify right side
    22,042.12x = 411,919,123.99
  5. Step 5: Solve for x
    x = 411,919,123.99/22,042.12
  6. Step 6: Final answer
    x = 18,687.82

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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.