Home / 40,117.38-55,362.85-21,968.87

Finding the Fourth Proportional to 40,117.38, 55,362.85 and 21,968.87

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Solution

The fourth proportional to 40,117.38, 55,362.85 and 21,968.87 is: 30,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117.38 : 55,362.85 = 21,968.87 : x
  2. Step 2: Convert to fraction form
    40,117.38/55,362.85 = 21,968.87/x
  3. Step 3: Cross multiply
    40,117.38x = 55,362.85 × 21,968.87
  4. Step 4: Simplify right side
    40,117.38x = 1,216,259,254.48
  5. Step 5: Solve for x
    x = 1,216,259,254.48/40,117.38
  6. Step 6: Final answer
    x = 30,317.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.