Home / 25,294.95-34,874.57-20,740.85

Finding the Fourth Proportional to 25,294.95, 34,874.57 and 20,740.85

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Solution

The fourth proportional to 25,294.95, 34,874.57 and 20,740.85 is: 28,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,294.95 : 34,874.57 = 20,740.85 : x
  2. Step 2: Convert to fraction form
    25,294.95/34,874.57 = 20,740.85/x
  3. Step 3: Cross multiply
    25,294.95x = 34,874.57 × 20,740.85
  4. Step 4: Simplify right side
    25,294.95x = 723,328,197.22
  5. Step 5: Solve for x
    x = 723,328,197.22/25,294.95
  6. Step 6: Final answer
    x = 28,595.76

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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.