Home / 21,325.07-31,986.70-15,093.95

Finding the Fourth Proportional to 21,325.07, 31,986.70 and 15,093.95

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Solution

The fourth proportional to 21,325.07, 31,986.70 and 15,093.95 is: 22,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.07 : 31,986.70 = 15,093.95 : x
  2. Step 2: Convert to fraction form
    21,325.07/31,986.70 = 15,093.95/x
  3. Step 3: Cross multiply
    21,325.07x = 31,986.70 × 15,093.95
  4. Step 4: Simplify right side
    21,325.07x = 482,805,452.80
  5. Step 5: Solve for x
    x = 482,805,452.80/21,325.07
  6. Step 6: Final answer
    x = 22,640.27

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1.5x scale

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.