Home / 21,360.30-32,040.45-10,272.30

Finding the Fourth Proportional to 21,360.30, 32,040.45 and 10,272.30

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Solution

The fourth proportional to 21,360.30, 32,040.45 and 10,272.30 is: 15,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.30 : 32,040.45 = 10,272.30 : x
  2. Step 2: Convert to fraction form
    21,360.30/32,040.45 = 10,272.30/x
  3. Step 3: Cross multiply
    21,360.30x = 32,040.45 × 10,272.30
  4. Step 4: Simplify right side
    21,360.30x = 329,129,114.54
  5. Step 5: Solve for x
    x = 329,129,114.54/21,360.30
  6. Step 6: Final answer
    x = 15,408.45

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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.