Home / 25,884.06-35,720.79-15,282.78

Finding the Fourth Proportional to 25,884.06, 35,720.79 and 15,282.78

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Solution

The fourth proportional to 25,884.06, 35,720.79 and 15,282.78 is: 21,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,884.06 : 35,720.79 = 15,282.78 : x
  2. Step 2: Convert to fraction form
    25,884.06/35,720.79 = 15,282.78/x
  3. Step 3: Cross multiply
    25,884.06x = 35,720.79 × 15,282.78
  4. Step 4: Simplify right side
    25,884.06x = 545,912,975.00
  5. Step 5: Solve for x
    x = 545,912,975.00/25,884.06
  6. Step 6: Final answer
    x = 21,090.70

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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.