Home / 20,762.13-31,154.13-9,083.55

Finding the Fourth Proportional to 20,762.13, 31,154.13 and 9,083.55

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Solution

The fourth proportional to 20,762.13, 31,154.13 and 9,083.55 is: 13,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.13 : 31,154.13 = 9,083.55 : x
  2. Step 2: Convert to fraction form
    20,762.13/31,154.13 = 9,083.55/x
  3. Step 3: Cross multiply
    20,762.13x = 31,154.13 × 9,083.55
  4. Step 4: Simplify right side
    20,762.13x = 282,990,097.56
  5. Step 5: Solve for x
    x = 282,990,097.56/20,762.13
  6. Step 6: Final answer
    x = 13,630.11

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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.