Home / 36,530.46-50,411.61-21,420

Finding the Fourth Proportional to 36,530.46, 50,411.61 and 21,420

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Solution

The fourth proportional to 36,530.46, 50,411.61 and 21,420 is: 29,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,530.46 : 50,411.61 = 21,420 : x
  2. Step 2: Convert to fraction form
    36,530.46/50,411.61 = 21,420/x
  3. Step 3: Cross multiply
    36,530.46x = 50,411.61 × 21,420
  4. Step 4: Simplify right side
    36,530.46x = 1,079,816,686.20
  5. Step 5: Solve for x
    x = 1,079,816,686.20/36,530.46
  6. Step 6: Final answer
    x = 29,559.35

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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.