Home / 31,363.26-43,301.58-19,439.28

Finding the Fourth Proportional to 31,363.26, 43,301.58 and 19,439.28

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Solution

The fourth proportional to 31,363.26, 43,301.58 and 19,439.28 is: 26,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.26 : 43,301.58 = 19,439.28 : x
  2. Step 2: Convert to fraction form
    31,363.26/43,301.58 = 19,439.28/x
  3. Step 3: Cross multiply
    31,363.26x = 43,301.58 × 19,439.28
  4. Step 4: Simplify right side
    31,363.26x = 841,751,538.06
  5. Step 5: Solve for x
    x = 841,751,538.06/31,363.26
  6. Step 6: Final answer
    x = 26,838.78

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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.