Home / 19,306.68-28,943.56-18,388.12

Finding the Fourth Proportional to 19,306.68, 28,943.56 and 18,388.12

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Solution

The fourth proportional to 19,306.68, 28,943.56 and 18,388.12 is: 27,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.68 : 28,943.56 = 18,388.12 : x
  2. Step 2: Convert to fraction form
    19,306.68/28,943.56 = 18,388.12/x
  3. Step 3: Cross multiply
    19,306.68x = 28,943.56 × 18,388.12
  4. Step 4: Simplify right side
    19,306.68x = 532,217,654.51
  5. Step 5: Solve for x
    x = 532,217,654.51/19,306.68
  6. Step 6: Final answer
    x = 27,566.50

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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.