Home / 28,853.28-43,285.19-13,270.50

Finding the Fourth Proportional to 28,853.28, 43,285.19 and 13,270.50

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Solution

The fourth proportional to 28,853.28, 43,285.19 and 13,270.50 is: 19,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.28 : 43,285.19 = 13,270.50 : x
  2. Step 2: Convert to fraction form
    28,853.28/43,285.19 = 13,270.50/x
  3. Step 3: Cross multiply
    28,853.28x = 43,285.19 × 13,270.50
  4. Step 4: Simplify right side
    28,853.28x = 574,416,047.54
  5. Step 5: Solve for x
    x = 574,416,047.54/28,853.28
  6. Step 6: Final answer
    x = 19,908.17

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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.