Home / 22,328.64-33,517.56-12,979.20

Finding the Fourth Proportional to 22,328.64, 33,517.56 and 12,979.20

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Solution

The fourth proportional to 22,328.64, 33,517.56 and 12,979.20 is: 19,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,328.64 : 33,517.56 = 12,979.20 : x
  2. Step 2: Convert to fraction form
    22,328.64/33,517.56 = 12,979.20/x
  3. Step 3: Cross multiply
    22,328.64x = 33,517.56 × 12,979.20
  4. Step 4: Simplify right side
    22,328.64x = 435,031,114.75
  5. Step 5: Solve for x
    x = 435,031,114.75/22,328.64
  6. Step 6: Final answer
    x = 19,483.10

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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.