Home / 25,701.21-35,478.57-15,632.86

Finding the Fourth Proportional to 25,701.21, 35,478.57 and 15,632.86

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Solution

The fourth proportional to 25,701.21, 35,478.57 and 15,632.86 is: 21,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,701.21 : 35,478.57 = 15,632.86 : x
  2. Step 2: Convert to fraction form
    25,701.21/35,478.57 = 15,632.86/x
  3. Step 3: Cross multiply
    25,701.21x = 35,478.57 × 15,632.86
  4. Step 4: Simplify right side
    25,701.21x = 554,631,517.81
  5. Step 5: Solve for x
    x = 554,631,517.81/25,701.21
  6. Step 6: Final answer
    x = 21,579.98

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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.