Home / 30,251.28-45,337.48-15,447.72

Finding the Fourth Proportional to 30,251.28, 45,337.48 and 15,447.72

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Solution

The fourth proportional to 30,251.28, 45,337.48 and 15,447.72 is: 23,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.28 : 45,337.48 = 15,447.72 : x
  2. Step 2: Convert to fraction form
    30,251.28/45,337.48 = 15,447.72/x
  3. Step 3: Cross multiply
    30,251.28x = 45,337.48 × 15,447.72
  4. Step 4: Simplify right side
    30,251.28x = 700,360,696.55
  5. Step 5: Solve for x
    x = 700,360,696.55/30,251.28
  6. Step 6: Final answer
    x = 23,151.44

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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.