Home / 20,158.47-27,819.18-11,206.35

Finding the Fourth Proportional to 20,158.47, 27,819.18 and 11,206.35

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Solution

The fourth proportional to 20,158.47, 27,819.18 and 11,206.35 is: 15,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.47 : 27,819.18 = 11,206.35 : x
  2. Step 2: Convert to fraction form
    20,158.47/27,819.18 = 11,206.35/x
  3. Step 3: Cross multiply
    20,158.47x = 27,819.18 × 11,206.35
  4. Step 4: Simplify right side
    20,158.47x = 311,751,467.79
  5. Step 5: Solve for x
    x = 311,751,467.79/20,158.47
  6. Step 6: Final answer
    x = 15,465.04

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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.