Home / 39,300.49-54,234.35-21,395.46

Finding the Fourth Proportional to 39,300.49, 54,234.35 and 21,395.46

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Solution

The fourth proportional to 39,300.49, 54,234.35 and 21,395.46 is: 29,525.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,300.49 : 54,234.35 = 21,395.46 : x
  2. Step 2: Convert to fraction form
    39,300.49/54,234.35 = 21,395.46/x
  3. Step 3: Cross multiply
    39,300.49x = 54,234.35 × 21,395.46
  4. Step 4: Simplify right side
    39,300.49x = 1,160,368,797.79
  5. Step 5: Solve for x
    x = 1,160,368,797.79/39,300.49
  6. Step 6: Final answer
    x = 29,525.55

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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.