Home / 37,686.75-52,008.12-20,919.75

Finding the Fourth Proportional to 37,686.75, 52,008.12 and 20,919.75

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Solution

The fourth proportional to 37,686.75, 52,008.12 and 20,919.75 is: 28,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,686.75 : 52,008.12 = 20,919.75 : x
  2. Step 2: Convert to fraction form
    37,686.75/52,008.12 = 20,919.75/x
  3. Step 3: Cross multiply
    37,686.75x = 52,008.12 × 20,919.75
  4. Step 4: Simplify right side
    37,686.75x = 1,087,996,868.37
  5. Step 5: Solve for x
    x = 1,087,996,868.37/37,686.75
  6. Step 6: Final answer
    x = 28,869.48

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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.