Home / 31,505.10-43,479-17,357.94

Finding the Fourth Proportional to 31,505.10, 43,479 and 17,357.94

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Solution

The fourth proportional to 31,505.10, 43,479 and 17,357.94 is: 23,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.10 : 43,479 = 17,357.94 : x
  2. Step 2: Convert to fraction form
    31,505.10/43,479 = 17,357.94/x
  3. Step 3: Cross multiply
    31,505.10x = 43,479 × 17,357.94
  4. Step 4: Simplify right side
    31,505.10x = 754,705,873.26
  5. Step 5: Solve for x
    x = 754,705,873.26/31,505.10
  6. Step 6: Final answer
    x = 23,955.04

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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.