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Finding the Fourth Proportional to 40,582, 60,873.02 and 12,880

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Solution

The fourth proportional to 40,582, 60,873.02 and 12,880 is: 19,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,582 : 60,873.02 = 12,880 : x
  2. Step 2: Convert to fraction form
    40,582/60,873.02 = 12,880/x
  3. Step 3: Cross multiply
    40,582x = 60,873.02 × 12,880
  4. Step 4: Simplify right side
    40,582x = 784,044,497.60
  5. Step 5: Solve for x
    x = 784,044,497.60/40,582
  6. Step 6: Final answer
    x = 19,320.01

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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.