Home / 26,938.60-40,388.70-10,292.20

Finding the Fourth Proportional to 26,938.60, 40,388.70 and 10,292.20

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Solution

The fourth proportional to 26,938.60, 40,388.70 and 10,292.20 is: 15,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,938.60 : 40,388.70 = 10,292.20 : x
  2. Step 2: Convert to fraction form
    26,938.60/40,388.70 = 10,292.20/x
  3. Step 3: Cross multiply
    26,938.60x = 40,388.70 × 10,292.20
  4. Step 4: Simplify right side
    26,938.60x = 415,688,578.14
  5. Step 5: Solve for x
    x = 415,688,578.14/26,938.60
  6. Step 6: Final answer
    x = 15,430.96

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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.