Home / 25,788.48-35,589.12-15,177.60

Finding the Fourth Proportional to 25,788.48, 35,589.12 and 15,177.60

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Solution

The fourth proportional to 25,788.48, 35,589.12 and 15,177.60 is: 20,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,788.48 : 35,589.12 = 15,177.60 : x
  2. Step 2: Convert to fraction form
    25,788.48/35,589.12 = 15,177.60/x
  3. Step 3: Cross multiply
    25,788.48x = 35,589.12 × 15,177.60
  4. Step 4: Simplify right side
    25,788.48x = 540,157,427.71
  5. Step 5: Solve for x
    x = 540,157,427.71/25,788.48
  6. Step 6: Final answer
    x = 20,945.69

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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.