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Finding the Fourth Proportional to 22,312.60, 33,468.90 and 21,219.10

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Solution

The fourth proportional to 22,312.60, 33,468.90 and 21,219.10 is: 31,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.60 : 33,468.90 = 21,219.10 : x
  2. Step 2: Convert to fraction form
    22,312.60/33,468.90 = 21,219.10/x
  3. Step 3: Cross multiply
    22,312.60x = 33,468.90 × 21,219.10
  4. Step 4: Simplify right side
    22,312.60x = 710,179,935.99
  5. Step 5: Solve for x
    x = 710,179,935.99/22,312.60
  6. Step 6: Final answer
    x = 31,828.65

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Similar ratio
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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.