Home / 34,271.42-47,291.18-20,121.53

Finding the Fourth Proportional to 34,271.42, 47,291.18 and 20,121.53

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Solution

The fourth proportional to 34,271.42, 47,291.18 and 20,121.53 is: 27,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,271.42 : 47,291.18 = 20,121.53 : x
  2. Step 2: Convert to fraction form
    34,271.42/47,291.18 = 20,121.53/x
  3. Step 3: Cross multiply
    34,271.42x = 47,291.18 × 20,121.53
  4. Step 4: Simplify right side
    34,271.42x = 951,570,560.04
  5. Step 5: Solve for x
    x = 951,570,560.04/34,271.42
  6. Step 6: Final answer
    x = 27,765.72

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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.