Home / 31,290.24-43,181.16-19,353.36

Finding the Fourth Proportional to 31,290.24, 43,181.16 and 19,353.36

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Solution

The fourth proportional to 31,290.24, 43,181.16 and 19,353.36 is: 26,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.24 : 43,181.16 = 19,353.36 : x
  2. Step 2: Convert to fraction form
    31,290.24/43,181.16 = 19,353.36/x
  3. Step 3: Cross multiply
    31,290.24x = 43,181.16 × 19,353.36
  4. Step 4: Simplify right side
    31,290.24x = 835,700,534.70
  5. Step 5: Solve for x
    x = 835,700,534.70/31,290.24
  6. Step 6: Final answer
    x = 26,708.03

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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.