Home / 21,840.60-32,712.30-11,440.20

Finding the Fourth Proportional to 21,840.60, 32,712.30 and 11,440.20

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Solution

The fourth proportional to 21,840.60, 32,712.30 and 11,440.20 is: 17,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.60 : 32,712.30 = 11,440.20 : x
  2. Step 2: Convert to fraction form
    21,840.60/32,712.30 = 11,440.20/x
  3. Step 3: Cross multiply
    21,840.60x = 32,712.30 × 11,440.20
  4. Step 4: Simplify right side
    21,840.60x = 374,235,254.46
  5. Step 5: Solve for x
    x = 374,235,254.46/21,840.60
  6. Step 6: Final answer
    x = 17,134.84

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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.