Home / 31,554.12-43,532.46-18,123.24

Finding the Fourth Proportional to 31,554.12, 43,532.46 and 18,123.24

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Solution

The fourth proportional to 31,554.12, 43,532.46 and 18,123.24 is: 25,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,554.12 : 43,532.46 = 18,123.24 : x
  2. Step 2: Convert to fraction form
    31,554.12/43,532.46 = 18,123.24/x
  3. Step 3: Cross multiply
    31,554.12x = 43,532.46 × 18,123.24
  4. Step 4: Simplify right side
    31,554.12x = 788,949,220.37
  5. Step 5: Solve for x
    x = 788,949,220.37/31,554.12
  6. Step 6: Final answer
    x = 25,003.05

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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.