Home / 26,929.37-40,358.42-20,665.45

Finding the Fourth Proportional to 26,929.37, 40,358.42 and 20,665.45

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Solution

The fourth proportional to 26,929.37, 40,358.42 and 20,665.45 is: 30,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.37 : 40,358.42 = 20,665.45 : x
  2. Step 2: Convert to fraction form
    26,929.37/40,358.42 = 20,665.45/x
  3. Step 3: Cross multiply
    26,929.37x = 40,358.42 × 20,665.45
  4. Step 4: Simplify right side
    26,929.37x = 834,024,605.47
  5. Step 5: Solve for x
    x = 834,024,605.47/26,929.37
  6. Step 6: Final answer
    x = 30,970.82

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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.