Home / 25,242.75-34,845.93-15,816.78

Finding the Fourth Proportional to 25,242.75, 34,845.93 and 15,816.78

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Solution

The fourth proportional to 25,242.75, 34,845.93 and 15,816.78 is: 21,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,242.75 : 34,845.93 = 15,816.78 : x
  2. Step 2: Convert to fraction form
    25,242.75/34,845.93 = 15,816.78/x
  3. Step 3: Cross multiply
    25,242.75x = 34,845.93 × 15,816.78
  4. Step 4: Simplify right side
    25,242.75x = 551,150,408.71
  5. Step 5: Solve for x
    x = 551,150,408.71/25,242.75
  6. Step 6: Final answer
    x = 21,834.01

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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.