Home / 22,098.76-30,510.30-13,720.12

Finding the Fourth Proportional to 22,098.76, 30,510.30 and 13,720.12

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Solution

The fourth proportional to 22,098.76, 30,510.30 and 13,720.12 is: 18,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,098.76 : 30,510.30 = 13,720.12 : x
  2. Step 2: Convert to fraction form
    22,098.76/30,510.30 = 13,720.12/x
  3. Step 3: Cross multiply
    22,098.76x = 30,510.30 × 13,720.12
  4. Step 4: Simplify right side
    22,098.76x = 418,604,977.24
  5. Step 5: Solve for x
    x = 418,604,977.24/22,098.76
  6. Step 6: Final answer
    x = 18,942.46

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Double scale
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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.