Home / 25,420.82-38,140.38-15,445.92

Finding the Fourth Proportional to 25,420.82, 38,140.38 and 15,445.92

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Solution

The fourth proportional to 25,420.82, 38,140.38 and 15,445.92 is: 23,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.82 : 38,140.38 = 15,445.92 : x
  2. Step 2: Convert to fraction form
    25,420.82/38,140.38 = 15,445.92/x
  3. Step 3: Cross multiply
    25,420.82x = 38,140.38 × 15,445.92
  4. Step 4: Simplify right side
    25,420.82x = 589,113,258.25
  5. Step 5: Solve for x
    x = 589,113,258.25/25,420.82
  6. Step 6: Final answer
    x = 23,174.44

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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.