Home / 31,008.88-42,790.62-16,861.66

Finding the Fourth Proportional to 31,008.88, 42,790.62 and 16,861.66

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Solution

The fourth proportional to 31,008.88, 42,790.62 and 16,861.66 is: 23,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.88 : 42,790.62 = 16,861.66 : x
  2. Step 2: Convert to fraction form
    31,008.88/42,790.62 = 16,861.66/x
  3. Step 3: Cross multiply
    31,008.88x = 42,790.62 × 16,861.66
  4. Step 4: Simplify right side
    31,008.88x = 721,520,885.63
  5. Step 5: Solve for x
    x = 721,520,885.63/31,008.88
  6. Step 6: Final answer
    x = 23,268.20

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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.