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Finding the Fourth Proportional to 40,260, 55,558.80 and 23,489.76

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Solution

The fourth proportional to 40,260, 55,558.80 and 23,489.76 is: 32,415.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,260 : 55,558.80 = 23,489.76 : x
  2. Step 2: Convert to fraction form
    40,260/55,558.80 = 23,489.76/x
  3. Step 3: Cross multiply
    40,260x = 55,558.80 × 23,489.76
  4. Step 4: Simplify right side
    40,260x = 1,305,062,877.89
  5. Step 5: Solve for x
    x = 1,305,062,877.89/40,260
  6. Step 6: Final answer
    x = 32,415.87

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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.