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Finding the Fourth Proportional to 37,686.25, 52,007.03 and 20,919.25

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Solution

The fourth proportional to 37,686.25, 52,007.03 and 20,919.25 is: 28,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,686.25 : 52,007.03 = 20,919.25 : x
  2. Step 2: Convert to fraction form
    37,686.25/52,007.03 = 20,919.25/x
  3. Step 3: Cross multiply
    37,686.25x = 52,007.03 × 20,919.25
  4. Step 4: Simplify right side
    37,686.25x = 1,087,948,062.33
  5. Step 5: Solve for x
    x = 1,087,948,062.33/37,686.25
  6. Step 6: Final answer
    x = 28,868.57

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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.