Home / 31,261.81-43,141.29-17,114.65

Finding the Fourth Proportional to 31,261.81, 43,141.29 and 17,114.65

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Solution

The fourth proportional to 31,261.81, 43,141.29 and 17,114.65 is: 23,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261.81 : 43,141.29 = 17,114.65 : x
  2. Step 2: Convert to fraction form
    31,261.81/43,141.29 = 17,114.65/x
  3. Step 3: Cross multiply
    31,261.81x = 43,141.29 × 17,114.65
  4. Step 4: Simplify right side
    31,261.81x = 738,347,863.19
  5. Step 5: Solve for x
    x = 738,347,863.19/31,261.81
  6. Step 6: Final answer
    x = 23,618.21

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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.