Home / 19,140.20-28,677.49-15,203.60

Finding the Fourth Proportional to 19,140.20, 28,677.49 and 15,203.60

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Solution

The fourth proportional to 19,140.20, 28,677.49 and 15,203.60 is: 22,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.20 : 28,677.49 = 15,203.60 : x
  2. Step 2: Convert to fraction form
    19,140.20/28,677.49 = 15,203.60/x
  3. Step 3: Cross multiply
    19,140.20x = 28,677.49 × 15,203.60
  4. Step 4: Simplify right side
    19,140.20x = 436,001,086.96
  5. Step 5: Solve for x
    x = 436,001,086.96/19,140.20
  6. Step 6: Final answer
    x = 22,779.34

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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.