Home / 31,458.95-43,411.55-17,311.79

Finding the Fourth Proportional to 31,458.95, 43,411.55 and 17,311.79

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Solution

The fourth proportional to 31,458.95, 43,411.55 and 17,311.79 is: 23,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.95 : 43,411.55 = 17,311.79 : x
  2. Step 2: Convert to fraction form
    31,458.95/43,411.55 = 17,311.79/x
  3. Step 3: Cross multiply
    31,458.95x = 43,411.55 × 17,311.79
  4. Step 4: Simplify right side
    31,458.95x = 751,531,659.14
  5. Step 5: Solve for x
    x = 751,531,659.14/31,458.95
  6. Step 6: Final answer
    x = 23,889.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.