Home / 28,278.72-39,044.16-17,673.12

Finding the Fourth Proportional to 28,278.72, 39,044.16 and 17,673.12

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Solution

The fourth proportional to 28,278.72, 39,044.16 and 17,673.12 is: 24,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.72 : 39,044.16 = 17,673.12 : x
  2. Step 2: Convert to fraction form
    28,278.72/39,044.16 = 17,673.12/x
  3. Step 3: Cross multiply
    28,278.72x = 39,044.16 × 17,673.12
  4. Step 4: Simplify right side
    28,278.72x = 690,032,124.98
  5. Step 5: Solve for x
    x = 690,032,124.98/28,278.72
  6. Step 6: Final answer
    x = 24,401.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.