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Finding the Fourth Proportional to 26,402, 39,572.28 and 10,800.72

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Solution

The fourth proportional to 26,402, 39,572.28 and 10,800.72 is: 16,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,402 : 39,572.28 = 10,800.72 : x
  2. Step 2: Convert to fraction form
    26,402/39,572.28 = 10,800.72/x
  3. Step 3: Cross multiply
    26,402x = 39,572.28 × 10,800.72
  4. Step 4: Simplify right side
    26,402x = 427,409,116.04
  5. Step 5: Solve for x
    x = 427,409,116.04/26,402
  6. Step 6: Final answer
    x = 16,188.51

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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.