Home / 20,151.14-30,212.27-9,471.52

Finding the Fourth Proportional to 20,151.14, 30,212.27 and 9,471.52

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Solution

The fourth proportional to 20,151.14, 30,212.27 and 9,471.52 is: 14,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.14 : 30,212.27 = 9,471.52 : x
  2. Step 2: Convert to fraction form
    20,151.14/30,212.27 = 9,471.52/x
  3. Step 3: Cross multiply
    20,151.14x = 30,212.27 × 9,471.52
  4. Step 4: Simplify right side
    20,151.14x = 286,155,921.13
  5. Step 5: Solve for x
    x = 286,155,921.13/20,151.14
  6. Step 6: Final answer
    x = 14,200.48

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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.