Home / 31,379.64-43,303.68-17,232.20

Finding the Fourth Proportional to 31,379.64, 43,303.68 and 17,232.20

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Solution

The fourth proportional to 31,379.64, 43,303.68 and 17,232.20 is: 23,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.64 : 43,303.68 = 17,232.20 : x
  2. Step 2: Convert to fraction form
    31,379.64/43,303.68 = 17,232.20/x
  3. Step 3: Cross multiply
    31,379.64x = 43,303.68 × 17,232.20
  4. Step 4: Simplify right side
    31,379.64x = 746,217,674.50
  5. Step 5: Solve for x
    x = 746,217,674.50/31,379.64
  6. Step 6: Final answer
    x = 23,780.31

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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.