Home / 25,720.64-38,583.36-9,078.80

Finding the Fourth Proportional to 25,720.64, 38,583.36 and 9,078.80

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Solution

The fourth proportional to 25,720.64, 38,583.36 and 9,078.80 is: 13,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.64 : 38,583.36 = 9,078.80 : x
  2. Step 2: Convert to fraction form
    25,720.64/38,583.36 = 9,078.80/x
  3. Step 3: Cross multiply
    25,720.64x = 38,583.36 × 9,078.80
  4. Step 4: Simplify right side
    25,720.64x = 350,290,608.77
  5. Step 5: Solve for x
    x = 350,290,608.77/25,720.64
  6. Step 6: Final answer
    x = 13,619.05

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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.