Home / 31,291.68-43,220.88-25,330.08

Finding the Fourth Proportional to 31,291.68, 43,220.88 and 25,330.08

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Solution

The fourth proportional to 31,291.68, 43,220.88 and 25,330.08 is: 34,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.68 : 43,220.88 = 25,330.08 : x
  2. Step 2: Convert to fraction form
    31,291.68/43,220.88 = 25,330.08/x
  3. Step 3: Cross multiply
    31,291.68x = 43,220.88 × 25,330.08
  4. Step 4: Simplify right side
    31,291.68x = 1,094,788,348.07
  5. Step 5: Solve for x
    x = 1,094,788,348.07/31,291.68
  6. Step 6: Final answer
    x = 34,986.56

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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.