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Finding the Fourth Proportional to 40,348.77, 60,393.72 and 21,581.88

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Solution

The fourth proportional to 40,348.77, 60,393.72 and 21,581.88 is: 32,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,348.77 : 60,393.72 = 21,581.88 : x
  2. Step 2: Convert to fraction form
    40,348.77/60,393.72 = 21,581.88/x
  3. Step 3: Cross multiply
    40,348.77x = 60,393.72 × 21,581.88
  4. Step 4: Simplify right side
    40,348.77x = 1,303,410,017.79
  5. Step 5: Solve for x
    x = 1,303,410,017.79/40,348.77
  6. Step 6: Final answer
    x = 32,303.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.