Home / 20,638.61-30,954.17-9,391.29

Finding the Fourth Proportional to 20,638.61, 30,954.17 and 9,391.29

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Solution

The fourth proportional to 20,638.61, 30,954.17 and 9,391.29 is: 14,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,638.61 : 30,954.17 = 9,391.29 : x
  2. Step 2: Convert to fraction form
    20,638.61/30,954.17 = 9,391.29/x
  3. Step 3: Cross multiply
    20,638.61x = 30,954.17 × 9,391.29
  4. Step 4: Simplify right side
    20,638.61x = 290,699,587.18
  5. Step 5: Solve for x
    x = 290,699,587.18/20,638.61
  6. Step 6: Final answer
    x = 14,085.23

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1.5x scale

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.