Home / 31,439.82-43,386.10-17,830.36

Finding the Fourth Proportional to 31,439.82, 43,386.10 and 17,830.36

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Solution

The fourth proportional to 31,439.82, 43,386.10 and 17,830.36 is: 24,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.82 : 43,386.10 = 17,830.36 : x
  2. Step 2: Convert to fraction form
    31,439.82/43,386.10 = 17,830.36/x
  3. Step 3: Cross multiply
    31,439.82x = 43,386.10 × 17,830.36
  4. Step 4: Simplify right side
    31,439.82x = 773,589,782.00
  5. Step 5: Solve for x
    x = 773,589,782.00/31,439.82
  6. Step 6: Final answer
    x = 24,605.41

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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.