Home / 31,642.84-43,666.05-18,212.23

Finding the Fourth Proportional to 31,642.84, 43,666.05 and 18,212.23

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Solution

The fourth proportional to 31,642.84, 43,666.05 and 18,212.23 is: 25,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.84 : 43,666.05 = 18,212.23 : x
  2. Step 2: Convert to fraction form
    31,642.84/43,666.05 = 18,212.23/x
  3. Step 3: Cross multiply
    31,642.84x = 43,666.05 × 18,212.23
  4. Step 4: Simplify right side
    31,642.84x = 795,256,145.79
  5. Step 5: Solve for x
    x = 795,256,145.79/31,642.84
  6. Step 6: Final answer
    x = 25,132.26

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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.