Home / 31,371.22-43,277.65-19,430.20

Finding the Fourth Proportional to 31,371.22, 43,277.65 and 19,430.20

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Solution

The fourth proportional to 31,371.22, 43,277.65 and 19,430.20 is: 26,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.22 : 43,277.65 = 19,430.20 : x
  2. Step 2: Convert to fraction form
    31,371.22/43,277.65 = 19,430.20/x
  3. Step 3: Cross multiply
    31,371.22x = 43,277.65 × 19,430.20
  4. Step 4: Simplify right side
    31,371.22x = 840,893,395.03
  5. Step 5: Solve for x
    x = 840,893,395.03/31,371.22
  6. Step 6: Final answer
    x = 26,804.61

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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.