Home / 22,213.13-30,644.95-15,502.65

Finding the Fourth Proportional to 22,213.13, 30,644.95 and 15,502.65

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Solution

The fourth proportional to 22,213.13, 30,644.95 and 15,502.65 is: 21,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.13 : 30,644.95 = 15,502.65 : x
  2. Step 2: Convert to fraction form
    22,213.13/30,644.95 = 15,502.65/x
  3. Step 3: Cross multiply
    22,213.13x = 30,644.95 × 15,502.65
  4. Step 4: Simplify right side
    22,213.13x = 475,077,934.12
  5. Step 5: Solve for x
    x = 475,077,934.12/22,213.13
  6. Step 6: Final answer
    x = 21,387.26

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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.