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Finding the Fourth Proportional to 20,694.66, 31,038.84 and 7,547.04

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Solution

The fourth proportional to 20,694.66, 31,038.84 and 7,547.04 is: 11,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.66 : 31,038.84 = 7,547.04 : x
  2. Step 2: Convert to fraction form
    20,694.66/31,038.84 = 7,547.04/x
  3. Step 3: Cross multiply
    20,694.66x = 31,038.84 × 7,547.04
  4. Step 4: Simplify right side
    20,694.66x = 234,251,367.03
  5. Step 5: Solve for x
    x = 234,251,367.03/20,694.66
  6. Step 6: Final answer
    x = 11,319.41

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