Home / 21,840.71-32,761.10-6,045.78

Finding the Fourth Proportional to 21,840.71, 32,761.10 and 6,045.78

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Solution

The fourth proportional to 21,840.71, 32,761.10 and 6,045.78 is: 9,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.71 : 32,761.10 = 6,045.78 : x
  2. Step 2: Convert to fraction form
    21,840.71/32,761.10 = 6,045.78/x
  3. Step 3: Cross multiply
    21,840.71x = 32,761.10 × 6,045.78
  4. Step 4: Simplify right side
    21,840.71x = 198,066,523.41
  5. Step 5: Solve for x
    x = 198,066,523.41/21,840.71
  6. Step 6: Final answer
    x = 9,068.69

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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.