Home / 21,899.70-32,848.34-10,221.12

Finding the Fourth Proportional to 21,899.70, 32,848.34 and 10,221.12

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Solution

The fourth proportional to 21,899.70, 32,848.34 and 10,221.12 is: 15,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.70 : 32,848.34 = 10,221.12 : x
  2. Step 2: Convert to fraction form
    21,899.70/32,848.34 = 10,221.12/x
  3. Step 3: Cross multiply
    21,899.70x = 32,848.34 × 10,221.12
  4. Step 4: Simplify right side
    21,899.70x = 335,746,773.84
  5. Step 5: Solve for x
    x = 335,746,773.84/21,899.70
  6. Step 6: Final answer
    x = 15,331.11

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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.