Home / 31,784.71-43,879.22-22,395.19

Finding the Fourth Proportional to 31,784.71, 43,879.22 and 22,395.19

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Solution

The fourth proportional to 31,784.71, 43,879.22 and 22,395.19 is: 30,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,784.71 : 43,879.22 = 22,395.19 : x
  2. Step 2: Convert to fraction form
    31,784.71/43,879.22 = 22,395.19/x
  3. Step 3: Cross multiply
    31,784.71x = 43,879.22 × 22,395.19
  4. Step 4: Simplify right side
    31,784.71x = 982,683,468.95
  5. Step 5: Solve for x
    x = 982,683,468.95/31,784.71
  6. Step 6: Final answer
    x = 30,916.86

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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.