Home / 42,928.67-64,391.88-19,229.79

Finding the Fourth Proportional to 42,928.67, 64,391.88 and 19,229.79

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Solution

The fourth proportional to 42,928.67, 64,391.88 and 19,229.79 is: 28,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,928.67 : 64,391.88 = 19,229.79 : x
  2. Step 2: Convert to fraction form
    42,928.67/64,391.88 = 19,229.79/x
  3. Step 3: Cross multiply
    42,928.67x = 64,391.88 × 19,229.79
  4. Step 4: Simplify right side
    42,928.67x = 1,238,242,330.11
  5. Step 5: Solve for x
    x = 1,238,242,330.11/42,928.67
  6. Step 6: Final answer
    x = 28,844.18

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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.