Home / 22,154.80-33,187.40-13,809.20

Finding the Fourth Proportional to 22,154.80, 33,187.40 and 13,809.20

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Solution

The fourth proportional to 22,154.80, 33,187.40 and 13,809.20 is: 20,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,154.80 : 33,187.40 = 13,809.20 : x
  2. Step 2: Convert to fraction form
    22,154.80/33,187.40 = 13,809.20/x
  3. Step 3: Cross multiply
    22,154.80x = 33,187.40 × 13,809.20
  4. Step 4: Simplify right side
    22,154.80x = 458,291,444.08
  5. Step 5: Solve for x
    x = 458,291,444.08/22,154.80
  6. Step 6: Final answer
    x = 20,685.88

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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.