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Finding the Fourth Proportional to 26,988.84, 40,489.02 and 9,459.72

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Solution

The fourth proportional to 26,988.84, 40,489.02 and 9,459.72 is: 14,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.84 : 40,489.02 = 9,459.72 : x
  2. Step 2: Convert to fraction form
    26,988.84/40,489.02 = 9,459.72/x
  3. Step 3: Cross multiply
    26,988.84x = 40,489.02 × 9,459.72
  4. Step 4: Simplify right side
    26,988.84x = 383,014,792.27
  5. Step 5: Solve for x
    x = 383,014,792.27/26,988.84
  6. Step 6: Final answer
    x = 14,191.60

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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.