Home / 21,195.04-29,248.80-11,763.20

Finding the Fourth Proportional to 21,195.04, 29,248.80 and 11,763.20

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Solution

The fourth proportional to 21,195.04, 29,248.80 and 11,763.20 is: 16,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.04 : 29,248.80 = 11,763.20 : x
  2. Step 2: Convert to fraction form
    21,195.04/29,248.80 = 11,763.20/x
  3. Step 3: Cross multiply
    21,195.04x = 29,248.80 × 11,763.20
  4. Step 4: Simplify right side
    21,195.04x = 344,059,484.16
  5. Step 5: Solve for x
    x = 344,059,484.16/21,195.04
  6. Step 6: Final answer
    x = 16,233.02

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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.