Home / 36,215.78-54,281.63-13,712.15

Finding the Fourth Proportional to 36,215.78, 54,281.63 and 13,712.15

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Solution

The fourth proportional to 36,215.78, 54,281.63 and 13,712.15 is: 20,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,215.78 : 54,281.63 = 13,712.15 : x
  2. Step 2: Convert to fraction form
    36,215.78/54,281.63 = 13,712.15/x
  3. Step 3: Cross multiply
    36,215.78x = 54,281.63 × 13,712.15
  4. Step 4: Simplify right side
    36,215.78x = 744,318,022.79
  5. Step 5: Solve for x
    x = 744,318,022.79/36,215.78
  6. Step 6: Final answer
    x = 20,552.32

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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.