Home / 31,141.44-42,975.18-18,566.19

Finding the Fourth Proportional to 31,141.44, 42,975.18 and 18,566.19

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Solution

The fourth proportional to 31,141.44, 42,975.18 and 18,566.19 is: 25,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.44 : 42,975.18 = 18,566.19 : x
  2. Step 2: Convert to fraction form
    31,141.44/42,975.18 = 18,566.19/x
  3. Step 3: Cross multiply
    31,141.44x = 42,975.18 × 18,566.19
  4. Step 4: Simplify right side
    31,141.44x = 797,885,357.16
  5. Step 5: Solve for x
    x = 797,885,357.16/31,141.44
  6. Step 6: Final answer
    x = 25,621.34

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Double scale
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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.