Home / 19,438.24-29,207.76-16,979.68

Finding the Fourth Proportional to 19,438.24, 29,207.76 and 16,979.68

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Solution

The fourth proportional to 19,438.24, 29,207.76 and 16,979.68 is: 25,513.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.24 : 29,207.76 = 16,979.68 : x
  2. Step 2: Convert to fraction form
    19,438.24/29,207.76 = 16,979.68/x
  3. Step 3: Cross multiply
    19,438.24x = 29,207.76 × 16,979.68
  4. Step 4: Simplify right side
    19,438.24x = 495,938,418.32
  5. Step 5: Solve for x
    x = 495,938,418.32/19,438.24
  6. Step 6: Final answer
    x = 25,513.55

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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.