Home / 28,709.62-39,627.10-18,637.52

Finding the Fourth Proportional to 28,709.62, 39,627.10 and 18,637.52

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Solution

The fourth proportional to 28,709.62, 39,627.10 and 18,637.52 is: 25,724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.62 : 39,627.10 = 18,637.52 : x
  2. Step 2: Convert to fraction form
    28,709.62/39,627.10 = 18,637.52/x
  3. Step 3: Cross multiply
    28,709.62x = 39,627.10 × 18,637.52
  4. Step 4: Simplify right side
    28,709.62x = 738,550,868.79
  5. Step 5: Solve for x
    x = 738,550,868.79/28,709.62
  6. Step 6: Final answer
    x = 25,724.86

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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.