Home / 21,590.27-29,794.64-12,517.40

Finding the Fourth Proportional to 21,590.27, 29,794.64 and 12,517.40

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Solution

The fourth proportional to 21,590.27, 29,794.64 and 12,517.40 is: 17,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.27 : 29,794.64 = 12,517.40 : x
  2. Step 2: Convert to fraction form
    21,590.27/29,794.64 = 12,517.40/x
  3. Step 3: Cross multiply
    21,590.27x = 29,794.64 × 12,517.40
  4. Step 4: Simplify right side
    21,590.27x = 372,951,426.74
  5. Step 5: Solve for x
    x = 372,951,426.74/21,590.27
  6. Step 6: Final answer
    x = 17,274.05

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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.