Home / 31,782.04-43,867.79-19,838.19

Finding the Fourth Proportional to 31,782.04, 43,867.79 and 19,838.19

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Solution

The fourth proportional to 31,782.04, 43,867.79 and 19,838.19 is: 27,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,782.04 : 43,867.79 = 19,838.19 : x
  2. Step 2: Convert to fraction form
    31,782.04/43,867.79 = 19,838.19/x
  3. Step 3: Cross multiply
    31,782.04x = 43,867.79 × 19,838.19
  4. Step 4: Simplify right side
    31,782.04x = 870,257,552.90
  5. Step 5: Solve for x
    x = 870,257,552.90/31,782.04
  6. Step 6: Final answer
    x = 27,382.05

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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.