Home / 19,539.72-26,975.70-18,353.88

Finding the Fourth Proportional to 19,539.72, 26,975.70 and 18,353.88

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Solution

The fourth proportional to 19,539.72, 26,975.70 and 18,353.88 is: 25,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.72 : 26,975.70 = 18,353.88 : x
  2. Step 2: Convert to fraction form
    19,539.72/26,975.70 = 18,353.88/x
  3. Step 3: Cross multiply
    19,539.72x = 26,975.70 × 18,353.88
  4. Step 4: Simplify right side
    19,539.72x = 495,108,760.72
  5. Step 5: Solve for x
    x = 495,108,760.72/19,539.72
  6. Step 6: Final answer
    x = 25,338.58

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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.