Home / 20,610.16-28,441.26-11,178.52

Finding the Fourth Proportional to 20,610.16, 28,441.26 and 11,178.52

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Solution

The fourth proportional to 20,610.16, 28,441.26 and 11,178.52 is: 15,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.16 : 28,441.26 = 11,178.52 : x
  2. Step 2: Convert to fraction form
    20,610.16/28,441.26 = 11,178.52/x
  3. Step 3: Cross multiply
    20,610.16x = 28,441.26 × 11,178.52
  4. Step 4: Simplify right side
    20,610.16x = 317,931,193.74
  5. Step 5: Solve for x
    x = 317,931,193.74/20,610.16
  6. Step 6: Final answer
    x = 15,425.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.