Home / 21,414.10-32,102.67-10,305.50

Finding the Fourth Proportional to 21,414.10, 32,102.67 and 10,305.50

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Solution

The fourth proportional to 21,414.10, 32,102.67 and 10,305.50 is: 15,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.10 : 32,102.67 = 10,305.50 : x
  2. Step 2: Convert to fraction form
    21,414.10/32,102.67 = 10,305.50/x
  3. Step 3: Cross multiply
    21,414.10x = 32,102.67 × 10,305.50
  4. Step 4: Simplify right side
    21,414.10x = 330,834,184.59
  5. Step 5: Solve for x
    x = 330,834,184.59/21,414.10
  6. Step 6: Final answer
    x = 15,449.36

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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.