Home / 25,887.60-35,723.34-15,280.56

Finding the Fourth Proportional to 25,887.60, 35,723.34 and 15,280.56

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Solution

The fourth proportional to 25,887.60, 35,723.34 and 15,280.56 is: 21,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,887.60 : 35,723.34 = 15,280.56 : x
  2. Step 2: Convert to fraction form
    25,887.60/35,723.34 = 15,280.56/x
  3. Step 3: Cross multiply
    25,887.60x = 35,723.34 × 15,280.56
  4. Step 4: Simplify right side
    25,887.60x = 545,872,640.27
  5. Step 5: Solve for x
    x = 545,872,640.27/25,887.60
  6. Step 6: Final answer
    x = 21,086.26

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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.