Home / 21,304.52-29,400.18-12,357.20

Finding the Fourth Proportional to 21,304.52, 29,400.18 and 12,357.20

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Solution

The fourth proportional to 21,304.52, 29,400.18 and 12,357.20 is: 17,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.52 : 29,400.18 = 12,357.20 : x
  2. Step 2: Convert to fraction form
    21,304.52/29,400.18 = 12,357.20/x
  3. Step 3: Cross multiply
    21,304.52x = 29,400.18 × 12,357.20
  4. Step 4: Simplify right side
    21,304.52x = 363,303,904.30
  5. Step 5: Solve for x
    x = 363,303,904.30/21,304.52
  6. Step 6: Final answer
    x = 17,052.90

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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.