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Finding the Fourth Proportional to 26,667.78, 40,026.78 and 13,529.58

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Solution

The fourth proportional to 26,667.78, 40,026.78 and 13,529.58 is: 20,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,667.78 : 40,026.78 = 13,529.58 : x
  2. Step 2: Convert to fraction form
    26,667.78/40,026.78 = 13,529.58/x
  3. Step 3: Cross multiply
    26,667.78x = 40,026.78 × 13,529.58
  4. Step 4: Simplify right side
    26,667.78x = 541,545,522.15
  5. Step 5: Solve for x
    x = 541,545,522.15/26,667.78
  6. Step 6: Final answer
    x = 20,307.11

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1.5x scale

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.