Home / 22,245.93-30,691.85-15,085.53

Finding the Fourth Proportional to 22,245.93, 30,691.85 and 15,085.53

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Solution

The fourth proportional to 22,245.93, 30,691.85 and 15,085.53 is: 20,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.93 : 30,691.85 = 15,085.53 : x
  2. Step 2: Convert to fraction form
    22,245.93/30,691.85 = 15,085.53/x
  3. Step 3: Cross multiply
    22,245.93x = 30,691.85 × 15,085.53
  4. Step 4: Simplify right side
    22,245.93x = 463,002,748.50
  5. Step 5: Solve for x
    x = 463,002,748.50/22,245.93
  6. Step 6: Final answer
    x = 20,812.92

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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.