Home / 20,836.48-31,255.68-11,595.52

Finding the Fourth Proportional to 20,836.48, 31,255.68 and 11,595.52

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Solution

The fourth proportional to 20,836.48, 31,255.68 and 11,595.52 is: 17,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.48 : 31,255.68 = 11,595.52 : x
  2. Step 2: Convert to fraction form
    20,836.48/31,255.68 = 11,595.52/x
  3. Step 3: Cross multiply
    20,836.48x = 31,255.68 × 11,595.52
  4. Step 4: Simplify right side
    20,836.48x = 362,425,862.55
  5. Step 5: Solve for x
    x = 362,425,862.55/20,836.48
  6. Step 6: Final answer
    x = 17,393.81

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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.