Home / 40,022.48-55,231.43-21,873.72

Finding the Fourth Proportional to 40,022.48, 55,231.43 and 21,873.72

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Solution

The fourth proportional to 40,022.48, 55,231.43 and 21,873.72 is: 30,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,022.48 : 55,231.43 = 21,873.72 : x
  2. Step 2: Convert to fraction form
    40,022.48/55,231.43 = 21,873.72/x
  3. Step 3: Cross multiply
    40,022.48x = 55,231.43 × 21,873.72
  4. Step 4: Simplify right side
    40,022.48x = 1,208,116,931.23
  5. Step 5: Solve for x
    x = 1,208,116,931.23/40,022.48
  6. Step 6: Final answer
    x = 30,185.96

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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.