Home / 31,528.70-43,509.90-17,382.05

Finding the Fourth Proportional to 31,528.70, 43,509.90 and 17,382.05

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Solution

The fourth proportional to 31,528.70, 43,509.90 and 17,382.05 is: 23,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.70 : 43,509.90 = 17,382.05 : x
  2. Step 2: Convert to fraction form
    31,528.70/43,509.90 = 17,382.05/x
  3. Step 3: Cross multiply
    31,528.70x = 43,509.90 × 17,382.05
  4. Step 4: Simplify right side
    31,528.70x = 756,291,050.68
  5. Step 5: Solve for x
    x = 756,291,050.68/31,528.70
  6. Step 6: Final answer
    x = 23,987.39

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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.