Home / 25,971.76-35,860.22-15,913.94

Finding the Fourth Proportional to 25,971.76, 35,860.22 and 15,913.94

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Solution

The fourth proportional to 25,971.76, 35,860.22 and 15,913.94 is: 21,972.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.76 : 35,860.22 = 15,913.94 : x
  2. Step 2: Convert to fraction form
    25,971.76/35,860.22 = 15,913.94/x
  3. Step 3: Cross multiply
    25,971.76x = 35,860.22 × 15,913.94
  4. Step 4: Simplify right side
    25,971.76x = 570,677,190.27
  5. Step 5: Solve for x
    x = 570,677,190.27/25,971.76
  6. Step 6: Final answer
    x = 21,972.99

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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.