Home / 31,723.13-43,779.75-17,382.99

Finding the Fourth Proportional to 31,723.13, 43,779.75 and 17,382.99

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Solution

The fourth proportional to 31,723.13, 43,779.75 and 17,382.99 is: 23,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.13 : 43,779.75 = 17,382.99 : x
  2. Step 2: Convert to fraction form
    31,723.13/43,779.75 = 17,382.99/x
  3. Step 3: Cross multiply
    31,723.13x = 43,779.75 × 17,382.99
  4. Step 4: Simplify right side
    31,723.13x = 761,022,956.45
  5. Step 5: Solve for x
    x = 761,022,956.45/31,723.13
  6. Step 6: Final answer
    x = 23,989.53

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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.