Home / 39,347.70-54,300.42-21,442.65

Finding the Fourth Proportional to 39,347.70, 54,300.42 and 21,442.65

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Solution

The fourth proportional to 39,347.70, 54,300.42 and 21,442.65 is: 29,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,347.70 : 54,300.42 = 21,442.65 : x
  2. Step 2: Convert to fraction form
    39,347.70/54,300.42 = 21,442.65/x
  3. Step 3: Cross multiply
    39,347.70x = 54,300.42 × 21,442.65
  4. Step 4: Simplify right side
    39,347.70x = 1,164,344,900.91
  5. Step 5: Solve for x
    x = 1,164,344,900.91/39,347.70
  6. Step 6: Final answer
    x = 29,591.18

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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.