Home / 20,332.60-28,052.59-11,378.68

Finding the Fourth Proportional to 20,332.60, 28,052.59 and 11,378.68

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Solution

The fourth proportional to 20,332.60, 28,052.59 and 11,378.68 is: 15,698.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.60 : 28,052.59 = 11,378.68 : x
  2. Step 2: Convert to fraction form
    20,332.60/28,052.59 = 11,378.68/x
  3. Step 3: Cross multiply
    20,332.60x = 28,052.59 × 11,378.68
  4. Step 4: Simplify right side
    20,332.60x = 319,201,247.62
  5. Step 5: Solve for x
    x = 319,201,247.62/20,332.60
  6. Step 6: Final answer
    x = 15,698.99

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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.