Home / 31,281.12-43,168.32-17,134.08

Finding the Fourth Proportional to 31,281.12, 43,168.32 and 17,134.08

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Solution

The fourth proportional to 31,281.12, 43,168.32 and 17,134.08 is: 23,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.12 : 43,168.32 = 17,134.08 : x
  2. Step 2: Convert to fraction form
    31,281.12/43,168.32 = 17,134.08/x
  3. Step 3: Cross multiply
    31,281.12x = 43,168.32 × 17,134.08
  4. Step 4: Simplify right side
    31,281.12x = 739,649,448.35
  5. Step 5: Solve for x
    x = 739,649,448.35/31,281.12
  6. Step 6: Final answer
    x = 23,645.24

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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.