Home / 20,151.42-30,237.36-9,055.86

Finding the Fourth Proportional to 20,151.42, 30,237.36 and 9,055.86

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Solution

The fourth proportional to 20,151.42, 30,237.36 and 9,055.86 is: 13,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.42 : 30,237.36 = 9,055.86 : x
  2. Step 2: Convert to fraction form
    20,151.42/30,237.36 = 9,055.86/x
  3. Step 3: Cross multiply
    20,151.42x = 30,237.36 × 9,055.86
  4. Step 4: Simplify right side
    20,151.42x = 273,825,298.93
  5. Step 5: Solve for x
    x = 273,825,298.93/20,151.42
  6. Step 6: Final answer
    x = 13,588.39

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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.