Home / 31,470.66-43,426.92-19,529.64

Finding the Fourth Proportional to 31,470.66, 43,426.92 and 19,529.64

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Solution

The fourth proportional to 31,470.66, 43,426.92 and 19,529.64 is: 26,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.66 : 43,426.92 = 19,529.64 : x
  2. Step 2: Convert to fraction form
    31,470.66/43,426.92 = 19,529.64/x
  3. Step 3: Cross multiply
    31,470.66x = 43,426.92 × 19,529.64
  4. Step 4: Simplify right side
    31,470.66x = 848,112,113.91
  5. Step 5: Solve for x
    x = 848,112,113.91/31,470.66
  6. Step 6: Final answer
    x = 26,949.30

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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.