Home / 55,212.10-82,818.15-18,276.10

Finding the Fourth Proportional to 55,212.10, 82,818.15 and 18,276.10

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Solution

The fourth proportional to 55,212.10, 82,818.15 and 18,276.10 is: 27,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.10 : 82,818.15 = 18,276.10 : x
  2. Step 2: Convert to fraction form
    55,212.10/82,818.15 = 18,276.10/x
  3. Step 3: Cross multiply
    55,212.10x = 82,818.15 × 18,276.10
  4. Step 4: Simplify right side
    55,212.10x = 1,513,592,791.22
  5. Step 5: Solve for x
    x = 1,513,592,791.22/55,212.10
  6. Step 6: Final answer
    x = 27,414.15

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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.