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Finding the Fourth Proportional to 22,368.60, 33,488.10 and 21,202.20

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Solution

The fourth proportional to 22,368.60, 33,488.10 and 21,202.20 is: 31,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,368.60 : 33,488.10 = 21,202.20 : x
  2. Step 2: Convert to fraction form
    22,368.60/33,488.10 = 21,202.20/x
  3. Step 3: Cross multiply
    22,368.60x = 33,488.10 × 21,202.20
  4. Step 4: Simplify right side
    22,368.60x = 710,021,393.82
  5. Step 5: Solve for x
    x = 710,021,393.82/22,368.60
  6. Step 6: Final answer
    x = 31,741.88

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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.