Home / 28,195.28-42,235.44-13,359.21

Finding the Fourth Proportional to 28,195.28, 42,235.44 and 13,359.21

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Solution

The fourth proportional to 28,195.28, 42,235.44 and 13,359.21 is: 20,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.28 : 42,235.44 = 13,359.21 : x
  2. Step 2: Convert to fraction form
    28,195.28/42,235.44 = 13,359.21/x
  3. Step 3: Cross multiply
    28,195.28x = 42,235.44 × 13,359.21
  4. Step 4: Simplify right side
    28,195.28x = 564,232,112.40
  5. Step 5: Solve for x
    x = 564,232,112.40/28,195.28
  6. Step 6: Final answer
    x = 20,011.58

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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.