Home / 21,565.08-29,758.92-12,133.44

Finding the Fourth Proportional to 21,565.08, 29,758.92 and 12,133.44

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Solution

The fourth proportional to 21,565.08, 29,758.92 and 12,133.44 is: 16,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.08 : 29,758.92 = 12,133.44 : x
  2. Step 2: Convert to fraction form
    21,565.08/29,758.92 = 12,133.44/x
  3. Step 3: Cross multiply
    21,565.08x = 29,758.92 × 12,133.44
  4. Step 4: Simplify right side
    21,565.08x = 361,078,070.28
  5. Step 5: Solve for x
    x = 361,078,070.28/21,565.08
  6. Step 6: Final answer
    x = 16,743.65

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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.