Home / 25,975.50-35,865.41-15,917.69

Finding the Fourth Proportional to 25,975.50, 35,865.41 and 15,917.69

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Solution

The fourth proportional to 25,975.50, 35,865.41 and 15,917.69 is: 21,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,975.50 : 35,865.41 = 15,917.69 : x
  2. Step 2: Convert to fraction form
    25,975.50/35,865.41 = 15,917.69/x
  3. Step 3: Cross multiply
    25,975.50x = 35,865.41 × 15,917.69
  4. Step 4: Simplify right side
    25,975.50x = 570,894,219.19
  5. Step 5: Solve for x
    x = 570,894,219.19/25,975.50
  6. Step 6: Final answer
    x = 21,978.18

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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.