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Finding the Fourth Proportional to 22,390.20, 33,599.70 and 13,030.20

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Solution

The fourth proportional to 22,390.20, 33,599.70 and 13,030.20 is: 19,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.20 : 33,599.70 = 13,030.20 : x
  2. Step 2: Convert to fraction form
    22,390.20/33,599.70 = 13,030.20/x
  3. Step 3: Cross multiply
    22,390.20x = 33,599.70 × 13,030.20
  4. Step 4: Simplify right side
    22,390.20x = 437,810,810.94
  5. Step 5: Solve for x
    x = 437,810,810.94/22,390.20
  6. Step 6: Final answer
    x = 19,553.68

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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.