Home / 22,290.30-30,770.41-15,602.19

Finding the Fourth Proportional to 22,290.30, 30,770.41 and 15,602.19

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Solution

The fourth proportional to 22,290.30, 30,770.41 and 15,602.19 is: 21,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.30 : 30,770.41 = 15,602.19 : x
  2. Step 2: Convert to fraction form
    22,290.30/30,770.41 = 15,602.19/x
  3. Step 3: Cross multiply
    22,290.30x = 30,770.41 × 15,602.19
  4. Step 4: Simplify right side
    22,290.30x = 480,085,783.20
  5. Step 5: Solve for x
    x = 480,085,783.20/22,290.30
  6. Step 6: Final answer
    x = 21,537.88

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Half scale
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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.