Home / 28,095.90-38,780.15-16,163.07

Finding the Fourth Proportional to 28,095.90, 38,780.15 and 16,163.07

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Solution

The fourth proportional to 28,095.90, 38,780.15 and 16,163.07 is: 22,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.90 : 38,780.15 = 16,163.07 : x
  2. Step 2: Convert to fraction form
    28,095.90/38,780.15 = 16,163.07/x
  3. Step 3: Cross multiply
    28,095.90x = 38,780.15 × 16,163.07
  4. Step 4: Simplify right side
    28,095.90x = 626,806,198.25
  5. Step 5: Solve for x
    x = 626,806,198.25/28,095.90
  6. Step 6: Final answer
    x = 22,309.53

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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.