Home / 21,742.31-32,613.48-5,326.31

Finding the Fourth Proportional to 21,742.31, 32,613.48 and 5,326.31

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Solution

The fourth proportional to 21,742.31, 32,613.48 and 5,326.31 is: 7,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.31 : 32,613.48 = 5,326.31 : x
  2. Step 2: Convert to fraction form
    21,742.31/32,613.48 = 5,326.31/x
  3. Step 3: Cross multiply
    21,742.31x = 32,613.48 × 5,326.31
  4. Step 4: Simplify right side
    21,742.31x = 173,709,586.19
  5. Step 5: Solve for x
    x = 173,709,586.19/21,742.31
  6. Step 6: Final answer
    x = 7,989.47

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.