Home / 20,723.12-31,066.70-9,624.10

Finding the Fourth Proportional to 20,723.12, 31,066.70 and 9,624.10

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Solution

The fourth proportional to 20,723.12, 31,066.70 and 9,624.10 is: 14,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.12 : 31,066.70 = 9,624.10 : x
  2. Step 2: Convert to fraction form
    20,723.12/31,066.70 = 9,624.10/x
  3. Step 3: Cross multiply
    20,723.12x = 31,066.70 × 9,624.10
  4. Step 4: Simplify right side
    20,723.12x = 298,989,027.47
  5. Step 5: Solve for x
    x = 298,989,027.47/20,723.12
  6. Step 6: Final answer
    x = 14,427.80

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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.