Home / 21,748.40-32,653.20-11,225.60

Finding the Fourth Proportional to 21,748.40, 32,653.20 and 11,225.60

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Solution

The fourth proportional to 21,748.40, 32,653.20 and 11,225.60 is: 16,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.40 : 32,653.20 = 11,225.60 : x
  2. Step 2: Convert to fraction form
    21,748.40/32,653.20 = 11,225.60/x
  3. Step 3: Cross multiply
    21,748.40x = 32,653.20 × 11,225.60
  4. Step 4: Simplify right side
    21,748.40x = 366,551,761.92
  5. Step 5: Solve for x
    x = 366,551,761.92/21,748.40
  6. Step 6: Final answer
    x = 16,854.19

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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.