Home / 31,822.80-43,905.58-18,389.16

Finding the Fourth Proportional to 31,822.80, 43,905.58 and 18,389.16

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Solution

The fourth proportional to 31,822.80, 43,905.58 and 18,389.16 is: 25,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.80 : 43,905.58 = 18,389.16 : x
  2. Step 2: Convert to fraction form
    31,822.80/43,905.58 = 18,389.16/x
  3. Step 3: Cross multiply
    31,822.80x = 43,905.58 × 18,389.16
  4. Step 4: Simplify right side
    31,822.80x = 807,386,735.51
  5. Step 5: Solve for x
    x = 807,386,735.51/31,822.80
  6. Step 6: Final answer
    x = 25,371.33

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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.