Home / 52,215.22-78,297.11-18,930.30

Finding the Fourth Proportional to 52,215.22, 78,297.11 and 18,930.30

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Solution

The fourth proportional to 52,215.22, 78,297.11 and 18,930.30 is: 28,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,215.22 : 78,297.11 = 18,930.30 : x
  2. Step 2: Convert to fraction form
    52,215.22/78,297.11 = 18,930.30/x
  3. Step 3: Cross multiply
    52,215.22x = 78,297.11 × 18,930.30
  4. Step 4: Simplify right side
    52,215.22x = 1,482,187,781.43
  5. Step 5: Solve for x
    x = 1,482,187,781.43/52,215.22
  6. Step 6: Final answer
    x = 28,386.13

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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.