Home / 28,532.52-39,388.68-18,988.29

Finding the Fourth Proportional to 28,532.52, 39,388.68 and 18,988.29

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Solution

The fourth proportional to 28,532.52, 39,388.68 and 18,988.29 is: 26,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.52 : 39,388.68 = 18,988.29 : x
  2. Step 2: Convert to fraction form
    28,532.52/39,388.68 = 18,988.29/x
  3. Step 3: Cross multiply
    28,532.52x = 39,388.68 × 18,988.29
  4. Step 4: Simplify right side
    28,532.52x = 747,923,678.56
  5. Step 5: Solve for x
    x = 747,923,678.56/28,532.52
  6. Step 6: Final answer
    x = 26,213.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.