Home / 22,480.92-31,018.28-14,521.78

Finding the Fourth Proportional to 22,480.92, 31,018.28 and 14,521.78

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Solution

The fourth proportional to 22,480.92, 31,018.28 and 14,521.78 is: 20,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,480.92 : 31,018.28 = 14,521.78 : x
  2. Step 2: Convert to fraction form
    22,480.92/31,018.28 = 14,521.78/x
  3. Step 3: Cross multiply
    22,480.92x = 31,018.28 × 14,521.78
  4. Step 4: Simplify right side
    22,480.92x = 450,440,638.14
  5. Step 5: Solve for x
    x = 450,440,638.14/22,480.92
  6. Step 6: Final answer
    x = 20,036.57

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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.