Home / 20,837.38-31,256.07-9,150.70

Finding the Fourth Proportional to 20,837.38, 31,256.07 and 9,150.70

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Solution

The fourth proportional to 20,837.38, 31,256.07 and 9,150.70 is: 13,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.38 : 31,256.07 = 9,150.70 : x
  2. Step 2: Convert to fraction form
    20,837.38/31,256.07 = 9,150.70/x
  3. Step 3: Cross multiply
    20,837.38x = 31,256.07 × 9,150.70
  4. Step 4: Simplify right side
    20,837.38x = 286,014,919.75
  5. Step 5: Solve for x
    x = 286,014,919.75/20,837.38
  6. Step 6: Final answer
    x = 13,726.05

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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.