Home / 21,360.48-32,042.40-7,327.20

Finding the Fourth Proportional to 21,360.48, 32,042.40 and 7,327.20

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Solution

The fourth proportional to 21,360.48, 32,042.40 and 7,327.20 is: 10,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.48 : 32,042.40 = 7,327.20 : x
  2. Step 2: Convert to fraction form
    21,360.48/32,042.40 = 7,327.20/x
  3. Step 3: Cross multiply
    21,360.48x = 32,042.40 × 7,327.20
  4. Step 4: Simplify right side
    21,360.48x = 234,781,073.28
  5. Step 5: Solve for x
    x = 234,781,073.28/21,360.48
  6. Step 6: Final answer
    x = 10,991.38

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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.