Home / 25,780.70-38,605.42-16,988.96

Finding the Fourth Proportional to 25,780.70, 38,605.42 and 16,988.96

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Solution

The fourth proportional to 25,780.70, 38,605.42 and 16,988.96 is: 25,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.70 : 38,605.42 = 16,988.96 : x
  2. Step 2: Convert to fraction form
    25,780.70/38,605.42 = 16,988.96/x
  3. Step 3: Cross multiply
    25,780.70x = 38,605.42 × 16,988.96
  4. Step 4: Simplify right side
    25,780.70x = 655,865,936.16
  5. Step 5: Solve for x
    x = 655,865,936.16/25,780.70
  6. Step 6: Final answer
    x = 25,440.19

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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.