Home / 25,971.55-38,932.67-8,429.11

Finding the Fourth Proportional to 25,971.55, 38,932.67 and 8,429.11

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Solution

The fourth proportional to 25,971.55, 38,932.67 and 8,429.11 is: 12,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.55 : 38,932.67 = 8,429.11 : x
  2. Step 2: Convert to fraction form
    25,971.55/38,932.67 = 8,429.11/x
  3. Step 3: Cross multiply
    25,971.55x = 38,932.67 × 8,429.11
  4. Step 4: Simplify right side
    25,971.55x = 328,167,715.88
  5. Step 5: Solve for x
    x = 328,167,715.88/25,971.55
  6. Step 6: Final answer
    x = 12,635.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.