Home / 20,723.08-31,061.40-8,233.60

Finding the Fourth Proportional to 20,723.08, 31,061.40 and 8,233.60

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Solution

The fourth proportional to 20,723.08, 31,061.40 and 8,233.60 is: 12,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.08 : 31,061.40 = 8,233.60 : x
  2. Step 2: Convert to fraction form
    20,723.08/31,061.40 = 8,233.60/x
  3. Step 3: Cross multiply
    20,723.08x = 31,061.40 × 8,233.60
  4. Step 4: Simplify right side
    20,723.08x = 255,747,143.04
  5. Step 5: Solve for x
    x = 255,747,143.04/20,723.08
  6. Step 6: Final answer
    x = 12,341.17

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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.