Home / 31,446.58-47,157.18-12,723.16

Finding the Fourth Proportional to 31,446.58, 47,157.18 and 12,723.16

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Solution

The fourth proportional to 31,446.58, 47,157.18 and 12,723.16 is: 19,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.58 : 47,157.18 = 12,723.16 : x
  2. Step 2: Convert to fraction form
    31,446.58/47,157.18 = 12,723.16/x
  3. Step 3: Cross multiply
    31,446.58x = 47,157.18 × 12,723.16
  4. Step 4: Simplify right side
    31,446.58x = 599,988,346.29
  5. Step 5: Solve for x
    x = 599,988,346.29/31,446.58
  6. Step 6: Final answer
    x = 19,079.61

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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.