Home / 22,020.28-30,392.80-13,948.72

Finding the Fourth Proportional to 22,020.28, 30,392.80 and 13,948.72

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Solution

The fourth proportional to 22,020.28, 30,392.80 and 13,948.72 is: 19,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.28 : 30,392.80 = 13,948.72 : x
  2. Step 2: Convert to fraction form
    22,020.28/30,392.80 = 13,948.72/x
  3. Step 3: Cross multiply
    22,020.28x = 30,392.80 × 13,948.72
  4. Step 4: Simplify right side
    22,020.28x = 423,940,657.22
  5. Step 5: Solve for x
    x = 423,940,657.22/22,020.28
  6. Step 6: Final answer
    x = 19,252.28

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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.