Home / 21,640.36-32,473.98-13,854.76

Finding the Fourth Proportional to 21,640.36, 32,473.98 and 13,854.76

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Solution

The fourth proportional to 21,640.36, 32,473.98 and 13,854.76 is: 20,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.36 : 32,473.98 = 13,854.76 : x
  2. Step 2: Convert to fraction form
    21,640.36/32,473.98 = 13,854.76/x
  3. Step 3: Cross multiply
    21,640.36x = 32,473.98 × 13,854.76
  4. Step 4: Simplify right side
    21,640.36x = 449,919,199.14
  5. Step 5: Solve for x
    x = 449,919,199.14/21,640.36
  6. Step 6: Final answer
    x = 20,790.74

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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.