Home / 39,306.08-54,243.44-21,401.84

Finding the Fourth Proportional to 39,306.08, 54,243.44 and 21,401.84

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Solution

The fourth proportional to 39,306.08, 54,243.44 and 21,401.84 is: 29,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,306.08 : 54,243.44 = 21,401.84 : x
  2. Step 2: Convert to fraction form
    39,306.08/54,243.44 = 21,401.84/x
  3. Step 3: Cross multiply
    39,306.08x = 54,243.44 × 21,401.84
  4. Step 4: Simplify right side
    39,306.08x = 1,160,909,423.93
  5. Step 5: Solve for x
    x = 1,160,909,423.93/39,306.08
  6. Step 6: Final answer
    x = 29,535.11

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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.