Home / 22,365.90-33,512.40-19,231.20

Finding the Fourth Proportional to 22,365.90, 33,512.40 and 19,231.20

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Solution

The fourth proportional to 22,365.90, 33,512.40 and 19,231.20 is: 28,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,365.90 : 33,512.40 = 19,231.20 : x
  2. Step 2: Convert to fraction form
    22,365.90/33,512.40 = 19,231.20/x
  3. Step 3: Cross multiply
    22,365.90x = 33,512.40 × 19,231.20
  4. Step 4: Simplify right side
    22,365.90x = 644,483,666.88
  5. Step 5: Solve for x
    x = 644,483,666.88/22,365.90
  6. Step 6: Final answer
    x = 28,815.46

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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.