Home / 21,565.64-29,760.97-12,005.04

Finding the Fourth Proportional to 21,565.64, 29,760.97 and 12,005.04

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Solution

The fourth proportional to 21,565.64, 29,760.97 and 12,005.04 is: 16,567.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.64 : 29,760.97 = 12,005.04 : x
  2. Step 2: Convert to fraction form
    21,565.64/29,760.97 = 12,005.04/x
  3. Step 3: Cross multiply
    21,565.64x = 29,760.97 × 12,005.04
  4. Step 4: Simplify right side
    21,565.64x = 357,281,488.28
  5. Step 5: Solve for x
    x = 357,281,488.28/21,565.64
  6. Step 6: Final answer
    x = 16,567.16

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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.