Home / 28,140.06-42,168.33-11,479.71

Finding the Fourth Proportional to 28,140.06, 42,168.33 and 11,479.71

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Solution

The fourth proportional to 28,140.06, 42,168.33 and 11,479.71 is: 17,202.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.06 : 42,168.33 = 11,479.71 : x
  2. Step 2: Convert to fraction form
    28,140.06/42,168.33 = 11,479.71/x
  3. Step 3: Cross multiply
    28,140.06x = 42,168.33 × 11,479.71
  4. Step 4: Simplify right side
    28,140.06x = 484,080,199.58
  5. Step 5: Solve for x
    x = 484,080,199.58/28,140.06
  6. Step 6: Final answer
    x = 17,202.53

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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.