Home / 20,024.60-30,109.80-19,587.20

Finding the Fourth Proportional to 20,024.60, 30,109.80 and 19,587.20

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Solution

The fourth proportional to 20,024.60, 30,109.80 and 19,587.20 is: 29,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,024.60 : 30,109.80 = 19,587.20 : x
  2. Step 2: Convert to fraction form
    20,024.60/30,109.80 = 19,587.20/x
  3. Step 3: Cross multiply
    20,024.60x = 30,109.80 × 19,587.20
  4. Step 4: Simplify right side
    20,024.60x = 589,766,674.56
  5. Step 5: Solve for x
    x = 589,766,674.56/20,024.60
  6. Step 6: Final answer
    x = 29,452.11

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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.