Home / 21,570.89-32,371.12-7,530.92

Finding the Fourth Proportional to 21,570.89, 32,371.12 and 7,530.92

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Solution

The fourth proportional to 21,570.89, 32,371.12 and 7,530.92 is: 11,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570.89 : 32,371.12 = 7,530.92 : x
  2. Step 2: Convert to fraction form
    21,570.89/32,371.12 = 7,530.92/x
  3. Step 3: Cross multiply
    21,570.89x = 32,371.12 × 7,530.92
  4. Step 4: Simplify right side
    21,570.89x = 243,784,377.13
  5. Step 5: Solve for x
    x = 243,784,377.13/21,570.89
  6. Step 6: Final answer
    x = 11,301.54

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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.