Home / 25,110.40-37,615.20-15,721.60

Finding the Fourth Proportional to 25,110.40, 37,615.20 and 15,721.60

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Solution

The fourth proportional to 25,110.40, 37,615.20 and 15,721.60 is: 23,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,110.40 : 37,615.20 = 15,721.60 : x
  2. Step 2: Convert to fraction form
    25,110.40/37,615.20 = 15,721.60/x
  3. Step 3: Cross multiply
    25,110.40x = 37,615.20 × 15,721.60
  4. Step 4: Simplify right side
    25,110.40x = 591,371,128.32
  5. Step 5: Solve for x
    x = 591,371,128.32/25,110.40
  6. Step 6: Final answer
    x = 23,550.84

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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.