Home / 31,165.20-43,011.36-19,228.23

Finding the Fourth Proportional to 31,165.20, 43,011.36 and 19,228.23

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Solution

The fourth proportional to 31,165.20, 43,011.36 and 19,228.23 is: 26,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,165.20 : 43,011.36 = 19,228.23 : x
  2. Step 2: Convert to fraction form
    31,165.20/43,011.36 = 19,228.23/x
  3. Step 3: Cross multiply
    31,165.20x = 43,011.36 × 19,228.23
  4. Step 4: Simplify right side
    31,165.20x = 827,032,322.69
  5. Step 5: Solve for x
    x = 827,032,322.69/31,165.20
  6. Step 6: Final answer
    x = 26,537.05

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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.