Home / 22,110.90-30,461.15-15,384.96

Finding the Fourth Proportional to 22,110.90, 30,461.15 and 15,384.96

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Solution

The fourth proportional to 22,110.90, 30,461.15 and 15,384.96 is: 21,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.90 : 30,461.15 = 15,384.96 : x
  2. Step 2: Convert to fraction form
    22,110.90/30,461.15 = 15,384.96/x
  3. Step 3: Cross multiply
    22,110.90x = 30,461.15 × 15,384.96
  4. Step 4: Simplify right side
    22,110.90x = 468,643,497.38
  5. Step 5: Solve for x
    x = 468,643,497.38/22,110.90
  6. Step 6: Final answer
    x = 21,195.13

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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.