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Finding the Fourth Proportional to 36,870.51, 50,881.19 and 20,103.51

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Solution

The fourth proportional to 36,870.51, 50,881.19 and 20,103.51 is: 27,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,870.51 : 50,881.19 = 20,103.51 : x
  2. Step 2: Convert to fraction form
    36,870.51/50,881.19 = 20,103.51/x
  3. Step 3: Cross multiply
    36,870.51x = 50,881.19 × 20,103.51
  4. Step 4: Simplify right side
    36,870.51x = 1,022,890,411.46
  5. Step 5: Solve for x
    x = 1,022,890,411.46/36,870.51
  6. Step 6: Final answer
    x = 27,742.78

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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.