Home / 28,902.20-43,352.69-13,319.83

Finding the Fourth Proportional to 28,902.20, 43,352.69 and 13,319.83

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Solution

The fourth proportional to 28,902.20, 43,352.69 and 13,319.83 is: 19,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.20 : 43,352.69 = 13,319.83 : x
  2. Step 2: Convert to fraction form
    28,902.20/43,352.69 = 13,319.83/x
  3. Step 3: Cross multiply
    28,902.20x = 43,352.69 × 13,319.83
  4. Step 4: Simplify right side
    28,902.20x = 577,450,460.84
  5. Step 5: Solve for x
    x = 577,450,460.84/28,902.20
  6. Step 6: Final answer
    x = 19,979.46

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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.