Home / 39,236.04-54,144.18-21,330.68

Finding the Fourth Proportional to 39,236.04, 54,144.18 and 21,330.68

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Solution

The fourth proportional to 39,236.04, 54,144.18 and 21,330.68 is: 29,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.04 : 54,144.18 = 21,330.68 : x
  2. Step 2: Convert to fraction form
    39,236.04/54,144.18 = 21,330.68/x
  3. Step 3: Cross multiply
    39,236.04x = 54,144.18 × 21,330.68
  4. Step 4: Simplify right side
    39,236.04x = 1,154,931,906.72
  5. Step 5: Solve for x
    x = 1,154,931,906.72/39,236.04
  6. Step 6: Final answer
    x = 29,435.49

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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.