Home / 28,019.70-42,029.55-25,200.90

Finding the Fourth Proportional to 28,019.70, 42,029.55 and 25,200.90

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Solution

The fourth proportional to 28,019.70, 42,029.55 and 25,200.90 is: 37,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.70 : 42,029.55 = 25,200.90 : x
  2. Step 2: Convert to fraction form
    28,019.70/42,029.55 = 25,200.90/x
  3. Step 3: Cross multiply
    28,019.70x = 42,029.55 × 25,200.90
  4. Step 4: Simplify right side
    28,019.70x = 1,059,182,486.60
  5. Step 5: Solve for x
    x = 1,059,182,486.60/28,019.70
  6. Step 6: Final answer
    x = 37,801.35

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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.