Home / 21,462.58-29,618.40-12,031.12

Finding the Fourth Proportional to 21,462.58, 29,618.40 and 12,031.12

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Solution

The fourth proportional to 21,462.58, 29,618.40 and 12,031.12 is: 16,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.58 : 29,618.40 = 12,031.12 : x
  2. Step 2: Convert to fraction form
    21,462.58/29,618.40 = 12,031.12/x
  3. Step 3: Cross multiply
    21,462.58x = 29,618.40 × 12,031.12
  4. Step 4: Simplify right side
    21,462.58x = 356,342,524.61
  5. Step 5: Solve for x
    x = 356,342,524.61/21,462.58
  6. Step 6: Final answer
    x = 16,602.97

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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.