Home / 38,956.70-58,398.06-12,643.04

Finding the Fourth Proportional to 38,956.70, 58,398.06 and 12,643.04

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Solution

The fourth proportional to 38,956.70, 58,398.06 and 12,643.04 is: 18,952.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,956.70 : 58,398.06 = 12,643.04 : x
  2. Step 2: Convert to fraction form
    38,956.70/58,398.06 = 12,643.04/x
  3. Step 3: Cross multiply
    38,956.70x = 58,398.06 × 12,643.04
  4. Step 4: Simplify right side
    38,956.70x = 738,329,008.50
  5. Step 5: Solve for x
    x = 738,329,008.50/38,956.70
  6. Step 6: Final answer
    x = 18,952.56

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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.