Home / 19,243.80-28,865.70-18,077.40

Finding the Fourth Proportional to 19,243.80, 28,865.70 and 18,077.40

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Solution

The fourth proportional to 19,243.80, 28,865.70 and 18,077.40 is: 27,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.80 : 28,865.70 = 18,077.40 : x
  2. Step 2: Convert to fraction form
    19,243.80/28,865.70 = 18,077.40/x
  3. Step 3: Cross multiply
    19,243.80x = 28,865.70 × 18,077.40
  4. Step 4: Simplify right side
    19,243.80x = 521,816,805.18
  5. Step 5: Solve for x
    x = 521,816,805.18/19,243.80
  6. Step 6: Final answer
    x = 27,116.10

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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.