Home / 15,074.42-22,609-3,981.20

Finding the Fourth Proportional to 15,074.42, 22,609 and 3,981.20

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Solution

The fourth proportional to 15,074.42, 22,609 and 3,981.20 is: 5,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.42 : 22,609 = 3,981.20 : x
  2. Step 2: Convert to fraction form
    15,074.42/22,609 = 3,981.20/x
  3. Step 3: Cross multiply
    15,074.42x = 22,609 × 3,981.20
  4. Step 4: Simplify right side
    15,074.42x = 90,010,950.80
  5. Step 5: Solve for x
    x = 90,010,950.80/15,074.42
  6. Step 6: Final answer
    x = 5,971.11

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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.