Home / 25,398.79-38,100.69-8,756.63

Finding the Fourth Proportional to 25,398.79, 38,100.69 and 8,756.63

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Solution

The fourth proportional to 25,398.79, 38,100.69 and 8,756.63 is: 13,135.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.79 : 38,100.69 = 8,756.63 : x
  2. Step 2: Convert to fraction form
    25,398.79/38,100.69 = 8,756.63/x
  3. Step 3: Cross multiply
    25,398.79x = 38,100.69 × 8,756.63
  4. Step 4: Simplify right side
    25,398.79x = 333,633,740.33
  5. Step 5: Solve for x
    x = 333,633,740.33/25,398.79
  6. Step 6: Final answer
    x = 13,135.81

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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.