Home / 28,931.38-43,352.42-19,534.57

Finding the Fourth Proportional to 28,931.38, 43,352.42 and 19,534.57

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Solution

The fourth proportional to 28,931.38, 43,352.42 and 19,534.57 is: 29,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.38 : 43,352.42 = 19,534.57 : x
  2. Step 2: Convert to fraction form
    28,931.38/43,352.42 = 19,534.57/x
  3. Step 3: Cross multiply
    28,931.38x = 43,352.42 × 19,534.57
  4. Step 4: Simplify right side
    28,931.38x = 846,870,677.11
  5. Step 5: Solve for x
    x = 846,870,677.11/28,931.38
  6. Step 6: Final answer
    x = 29,271.70

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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.