Home / 22,105.60-33,158.40-19,427.20

Finding the Fourth Proportional to 22,105.60, 33,158.40 and 19,427.20

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Solution

The fourth proportional to 22,105.60, 33,158.40 and 19,427.20 is: 29,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,105.60 : 33,158.40 = 19,427.20 : x
  2. Step 2: Convert to fraction form
    22,105.60/33,158.40 = 19,427.20/x
  3. Step 3: Cross multiply
    22,105.60x = 33,158.40 × 19,427.20
  4. Step 4: Simplify right side
    22,105.60x = 644,174,868.48
  5. Step 5: Solve for x
    x = 644,174,868.48/22,105.60
  6. Step 6: Final answer
    x = 29,140.80

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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.