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Finding the Fourth Proportional to 26,913.50, 40,378.47 and 13,775.18

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Solution

The fourth proportional to 26,913.50, 40,378.47 and 13,775.18 is: 20,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,913.50 : 40,378.47 = 13,775.18 : x
  2. Step 2: Convert to fraction form
    26,913.50/40,378.47 = 13,775.18/x
  3. Step 3: Cross multiply
    26,913.50x = 40,378.47 × 13,775.18
  4. Step 4: Simplify right side
    26,913.50x = 556,220,692.37
  5. Step 5: Solve for x
    x = 556,220,692.37/26,913.50
  6. Step 6: Final answer
    x = 20,666.98

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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.