Home / 20,423.53-28,163.73-19,232.95

Finding the Fourth Proportional to 20,423.53, 28,163.73 and 19,232.95

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Solution

The fourth proportional to 20,423.53, 28,163.73 and 19,232.95 is: 26,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.53 : 28,163.73 = 19,232.95 : x
  2. Step 2: Convert to fraction form
    20,423.53/28,163.73 = 19,232.95/x
  3. Step 3: Cross multiply
    20,423.53x = 28,163.73 × 19,232.95
  4. Step 4: Simplify right side
    20,423.53x = 541,671,610.90
  5. Step 5: Solve for x
    x = 541,671,610.90/20,423.53
  6. Step 6: Final answer
    x = 26,521.94

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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.