Home / 22,581.81-31,151.43-15,018.44

Finding the Fourth Proportional to 22,581.81, 31,151.43 and 15,018.44

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Solution

The fourth proportional to 22,581.81, 31,151.43 and 15,018.44 is: 20,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.81 : 31,151.43 = 15,018.44 : x
  2. Step 2: Convert to fraction form
    22,581.81/31,151.43 = 15,018.44/x
  3. Step 3: Cross multiply
    22,581.81x = 31,151.43 × 15,018.44
  4. Step 4: Simplify right side
    22,581.81x = 467,845,726.61
  5. Step 5: Solve for x
    x = 467,845,726.61/22,581.81
  6. Step 6: Final answer
    x = 20,717.81

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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.