Home / 19,389.90-26,784.46-15,194.04

Finding the Fourth Proportional to 19,389.90, 26,784.46 and 15,194.04

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Solution

The fourth proportional to 19,389.90, 26,784.46 and 15,194.04 is: 20,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.90 : 26,784.46 = 15,194.04 : x
  2. Step 2: Convert to fraction form
    19,389.90/26,784.46 = 15,194.04/x
  3. Step 3: Cross multiply
    19,389.90x = 26,784.46 × 15,194.04
  4. Step 4: Simplify right side
    19,389.90x = 406,964,156.62
  5. Step 5: Solve for x
    x = 406,964,156.62/19,389.90
  6. Step 6: Final answer
    x = 20,988.46

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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.