Home / 21,561.73-32,342.60-9,840.13

Finding the Fourth Proportional to 21,561.73, 32,342.60 and 9,840.13

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Solution

The fourth proportional to 21,561.73, 32,342.60 and 9,840.13 is: 14,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.73 : 32,342.60 = 9,840.13 : x
  2. Step 2: Convert to fraction form
    21,561.73/32,342.60 = 9,840.13/x
  3. Step 3: Cross multiply
    21,561.73x = 32,342.60 × 9,840.13
  4. Step 4: Simplify right side
    21,561.73x = 318,255,388.54
  5. Step 5: Solve for x
    x = 318,255,388.54/21,561.73
  6. Step 6: Final answer
    x = 14,760.20

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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.