Home / 28,152.20-38,849.54-16,215.50

Finding the Fourth Proportional to 28,152.20, 38,849.54 and 16,215.50

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Solution

The fourth proportional to 28,152.20, 38,849.54 and 16,215.50 is: 22,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.20 : 38,849.54 = 16,215.50 : x
  2. Step 2: Convert to fraction form
    28,152.20/38,849.54 = 16,215.50/x
  3. Step 3: Cross multiply
    28,152.20x = 38,849.54 × 16,215.50
  4. Step 4: Simplify right side
    28,152.20x = 629,964,715.87
  5. Step 5: Solve for x
    x = 629,964,715.87/28,152.20
  6. Step 6: Final answer
    x = 22,377.10

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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.