Home / 28,228.46-42,334.02-19,519.34

Finding the Fourth Proportional to 28,228.46, 42,334.02 and 19,519.34

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Solution

The fourth proportional to 28,228.46, 42,334.02 and 19,519.34 is: 29,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.46 : 42,334.02 = 19,519.34 : x
  2. Step 2: Convert to fraction form
    28,228.46/42,334.02 = 19,519.34/x
  3. Step 3: Cross multiply
    28,228.46x = 42,334.02 × 19,519.34
  4. Step 4: Simplify right side
    28,228.46x = 826,332,129.95
  5. Step 5: Solve for x
    x = 826,332,129.95/28,228.46
  6. Step 6: Final answer
    x = 29,273.01

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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.