Home / 31,633.13-47,449.67-12,921.96

Finding the Fourth Proportional to 31,633.13, 47,449.67 and 12,921.96

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Solution

The fourth proportional to 31,633.13, 47,449.67 and 12,921.96 is: 19,382.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,633.13 : 47,449.67 = 12,921.96 : x
  2. Step 2: Convert to fraction form
    31,633.13/47,449.67 = 12,921.96/x
  3. Step 3: Cross multiply
    31,633.13x = 47,449.67 × 12,921.96
  4. Step 4: Simplify right side
    31,633.13x = 613,142,851.08
  5. Step 5: Solve for x
    x = 613,142,851.08/31,633.13
  6. Step 6: Final answer
    x = 19,382.93

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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.