Home / 31,802.20-43,908.42-28,434.28

Finding the Fourth Proportional to 31,802.20, 43,908.42 and 28,434.28

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Solution

The fourth proportional to 31,802.20, 43,908.42 and 28,434.28 is: 39,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.20 : 43,908.42 = 28,434.28 : x
  2. Step 2: Convert to fraction form
    31,802.20/43,908.42 = 28,434.28/x
  3. Step 3: Cross multiply
    31,802.20x = 43,908.42 × 28,434.28
  4. Step 4: Simplify right side
    31,802.20x = 1,248,504,308.64
  5. Step 5: Solve for x
    x = 1,248,504,308.64/31,802.20
  6. Step 6: Final answer
    x = 39,258.43

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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.