Home / 20,101.42-30,170.63-10,248.04

Finding the Fourth Proportional to 20,101.42, 30,170.63 and 10,248.04

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Solution

The fourth proportional to 20,101.42, 30,170.63 and 10,248.04 is: 15,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.42 : 30,170.63 = 10,248.04 : x
  2. Step 2: Convert to fraction form
    20,101.42/30,170.63 = 10,248.04/x
  3. Step 3: Cross multiply
    20,101.42x = 30,170.63 × 10,248.04
  4. Step 4: Simplify right side
    20,101.42x = 309,189,823.07
  5. Step 5: Solve for x
    x = 309,189,823.07/20,101.42
  6. Step 6: Final answer
    x = 15,381.49

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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.