Home / 20,723.34-31,089.86-8,244.07

Finding the Fourth Proportional to 20,723.34, 31,089.86 and 8,244.07

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Solution

The fourth proportional to 20,723.34, 31,089.86 and 8,244.07 is: 12,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.34 : 31,089.86 = 8,244.07 : x
  2. Step 2: Convert to fraction form
    20,723.34/31,089.86 = 8,244.07/x
  3. Step 3: Cross multiply
    20,723.34x = 31,089.86 × 8,244.07
  4. Step 4: Simplify right side
    20,723.34x = 256,306,982.13
  5. Step 5: Solve for x
    x = 256,306,982.13/20,723.34
  6. Step 6: Final answer
    x = 12,368.04

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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.