Home / 19,618.48-29,432.04-18,757.36

Finding the Fourth Proportional to 19,618.48, 29,432.04 and 18,757.36

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Solution

The fourth proportional to 19,618.48, 29,432.04 and 18,757.36 is: 28,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.48 : 29,432.04 = 18,757.36 : x
  2. Step 2: Convert to fraction form
    19,618.48/29,432.04 = 18,757.36/x
  3. Step 3: Cross multiply
    19,618.48x = 29,432.04 × 18,757.36
  4. Step 4: Simplify right side
    19,618.48x = 552,067,369.81
  5. Step 5: Solve for x
    x = 552,067,369.81/19,618.48
  6. Step 6: Final answer
    x = 28,140.17

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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.