Home / 31,405.04-43,339.20-17,257.88

Finding the Fourth Proportional to 31,405.04, 43,339.20 and 17,257.88

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Solution

The fourth proportional to 31,405.04, 43,339.20 and 17,257.88 is: 23,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.04 : 43,339.20 = 17,257.88 : x
  2. Step 2: Convert to fraction form
    31,405.04/43,339.20 = 17,257.88/x
  3. Step 3: Cross multiply
    31,405.04x = 43,339.20 × 17,257.88
  4. Step 4: Simplify right side
    31,405.04x = 747,942,712.90
  5. Step 5: Solve for x
    x = 747,942,712.90/31,405.04
  6. Step 6: Final answer
    x = 23,816.01

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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.