Home / 31,339.26-43,242.84-20,725.02

Finding the Fourth Proportional to 31,339.26, 43,242.84 and 20,725.02

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Solution

The fourth proportional to 31,339.26, 43,242.84 and 20,725.02 is: 28,597.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.26 : 43,242.84 = 20,725.02 : x
  2. Step 2: Convert to fraction form
    31,339.26/43,242.84 = 20,725.02/x
  3. Step 3: Cross multiply
    31,339.26x = 43,242.84 × 20,725.02
  4. Step 4: Simplify right side
    31,339.26x = 896,208,723.86
  5. Step 5: Solve for x
    x = 896,208,723.86/31,339.26
  6. Step 6: Final answer
    x = 28,597.00

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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.