Home / 21,342.32-29,418.86-14,616.32

Finding the Fourth Proportional to 21,342.32, 29,418.86 and 14,616.32

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Solution

The fourth proportional to 21,342.32, 29,418.86 and 14,616.32 is: 20,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.32 : 29,418.86 = 14,616.32 : x
  2. Step 2: Convert to fraction form
    21,342.32/29,418.86 = 14,616.32/x
  3. Step 3: Cross multiply
    21,342.32x = 29,418.86 × 14,616.32
  4. Step 4: Simplify right side
    21,342.32x = 429,995,471.80
  5. Step 5: Solve for x
    x = 429,995,471.80/21,342.32
  6. Step 6: Final answer
    x = 20,147.55

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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.