Home / 38,263.76-57,399.83-12,981.53

Finding the Fourth Proportional to 38,263.76, 57,399.83 and 12,981.53

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Solution

The fourth proportional to 38,263.76, 57,399.83 and 12,981.53 is: 19,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,263.76 : 57,399.83 = 12,981.53 : x
  2. Step 2: Convert to fraction form
    38,263.76/57,399.83 = 12,981.53/x
  3. Step 3: Cross multiply
    38,263.76x = 57,399.83 × 12,981.53
  4. Step 4: Simplify right side
    38,263.76x = 745,137,482.00
  5. Step 5: Solve for x
    x = 745,137,482.00/38,263.76
  6. Step 6: Final answer
    x = 19,473.71

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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.