Home / 38,981.76-58,491.84-18,206.72

Finding the Fourth Proportional to 38,981.76, 58,491.84 and 18,206.72

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Solution

The fourth proportional to 38,981.76, 58,491.84 and 18,206.72 is: 27,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.76 : 58,491.84 = 18,206.72 : x
  2. Step 2: Convert to fraction form
    38,981.76/58,491.84 = 18,206.72/x
  3. Step 3: Cross multiply
    38,981.76x = 58,491.84 × 18,206.72
  4. Step 4: Simplify right side
    38,981.76x = 1,064,944,553.16
  5. Step 5: Solve for x
    x = 1,064,944,553.16/38,981.76
  6. Step 6: Final answer
    x = 27,319.05

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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.