Home / 31,154.21-43,008.24-19,224.12

Finding the Fourth Proportional to 31,154.21, 43,008.24 and 19,224.12

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Solution

The fourth proportional to 31,154.21, 43,008.24 and 19,224.12 is: 26,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.21 : 43,008.24 = 19,224.12 : x
  2. Step 2: Convert to fraction form
    31,154.21/43,008.24 = 19,224.12/x
  3. Step 3: Cross multiply
    31,154.21x = 43,008.24 × 19,224.12
  4. Step 4: Simplify right side
    31,154.21x = 826,795,566.75
  5. Step 5: Solve for x
    x = 826,795,566.75/31,154.21
  6. Step 6: Final answer
    x = 26,538.81

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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.