Home / 25,137.60-34,681.12-15,069.30

Finding the Fourth Proportional to 25,137.60, 34,681.12 and 15,069.30

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Solution

The fourth proportional to 25,137.60, 34,681.12 and 15,069.30 is: 20,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,137.60 : 34,681.12 = 15,069.30 : x
  2. Step 2: Convert to fraction form
    25,137.60/34,681.12 = 15,069.30/x
  3. Step 3: Cross multiply
    25,137.60x = 34,681.12 × 15,069.30
  4. Step 4: Simplify right side
    25,137.60x = 522,620,201.62
  5. Step 5: Solve for x
    x = 522,620,201.62/25,137.60
  6. Step 6: Final answer
    x = 20,790.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.