Home / 21,417.72-29,565.74-16,113.88

Finding the Fourth Proportional to 21,417.72, 29,565.74 and 16,113.88

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Solution

The fourth proportional to 21,417.72, 29,565.74 and 16,113.88 is: 22,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.72 : 29,565.74 = 16,113.88 : x
  2. Step 2: Convert to fraction form
    21,417.72/29,565.74 = 16,113.88/x
  3. Step 3: Cross multiply
    21,417.72x = 29,565.74 × 16,113.88
  4. Step 4: Simplify right side
    21,417.72x = 476,418,786.47
  5. Step 5: Solve for x
    x = 476,418,786.47/21,417.72
  6. Step 6: Final answer
    x = 22,244.14

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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.