Home / 38,721.38-58,047.64-13,758.12

Finding the Fourth Proportional to 38,721.38, 58,047.64 and 13,758.12

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Solution

The fourth proportional to 38,721.38, 58,047.64 and 13,758.12 is: 20,624.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721.38 : 58,047.64 = 13,758.12 : x
  2. Step 2: Convert to fraction form
    38,721.38/58,047.64 = 13,758.12/x
  3. Step 3: Cross multiply
    38,721.38x = 58,047.64 × 13,758.12
  4. Step 4: Simplify right side
    38,721.38x = 798,626,362.44
  5. Step 5: Solve for x
    x = 798,626,362.44/38,721.38
  6. Step 6: Final answer
    x = 20,624.95

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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.