Home / 20,677.69-28,535.40-12,292.57

Finding the Fourth Proportional to 20,677.69, 28,535.40 and 12,292.57

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Solution

The fourth proportional to 20,677.69, 28,535.40 and 12,292.57 is: 16,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.69 : 28,535.40 = 12,292.57 : x
  2. Step 2: Convert to fraction form
    20,677.69/28,535.40 = 12,292.57/x
  3. Step 3: Cross multiply
    20,677.69x = 28,535.40 × 12,292.57
  4. Step 4: Simplify right side
    20,677.69x = 350,773,401.98
  5. Step 5: Solve for x
    x = 350,773,401.98/20,677.69
  6. Step 6: Final answer
    x = 16,963.86

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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.