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Finding the Fourth Proportional to 36,508.80, 50,374.40 and 21,398.40

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Solution

The fourth proportional to 36,508.80, 50,374.40 and 21,398.40 is: 29,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,508.80 : 50,374.40 = 21,398.40 : x
  2. Step 2: Convert to fraction form
    36,508.80/50,374.40 = 21,398.40/x
  3. Step 3: Cross multiply
    36,508.80x = 50,374.40 × 21,398.40
  4. Step 4: Simplify right side
    36,508.80x = 1,077,931,560.96
  5. Step 5: Solve for x
    x = 1,077,931,560.96/36,508.80
  6. Step 6: Final answer
    x = 29,525.25

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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.