Home / 21,214.36-31,819.08-5,633.20

Finding the Fourth Proportional to 21,214.36, 31,819.08 and 5,633.20

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Solution

The fourth proportional to 21,214.36, 31,819.08 and 5,633.20 is: 8,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.36 : 31,819.08 = 5,633.20 : x
  2. Step 2: Convert to fraction form
    21,214.36/31,819.08 = 5,633.20/x
  3. Step 3: Cross multiply
    21,214.36x = 31,819.08 × 5,633.20
  4. Step 4: Simplify right side
    21,214.36x = 179,243,241.46
  5. Step 5: Solve for x
    x = 179,243,241.46/21,214.36
  6. Step 6: Final answer
    x = 8,449.15

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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.