Home / 28,902.45-43,353.06-13,320.08

Finding the Fourth Proportional to 28,902.45, 43,353.06 and 13,320.08

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Solution

The fourth proportional to 28,902.45, 43,353.06 and 13,320.08 is: 19,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.45 : 43,353.06 = 13,320.08 : x
  2. Step 2: Convert to fraction form
    28,902.45/43,353.06 = 13,320.08/x
  3. Step 3: Cross multiply
    28,902.45x = 43,353.06 × 13,320.08
  4. Step 4: Simplify right side
    28,902.45x = 577,466,010.68
  5. Step 5: Solve for x
    x = 577,466,010.68/28,902.45
  6. Step 6: Final answer
    x = 19,979.83

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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.