Home / 38,789.04-53,560.44-31,620.08

Finding the Fourth Proportional to 38,789.04, 53,560.44 and 31,620.08

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Solution

The fourth proportional to 38,789.04, 53,560.44 and 31,620.08 is: 43,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,789.04 : 53,560.44 = 31,620.08 : x
  2. Step 2: Convert to fraction form
    38,789.04/53,560.44 = 31,620.08/x
  3. Step 3: Cross multiply
    38,789.04x = 53,560.44 × 31,620.08
  4. Step 4: Simplify right side
    38,789.04x = 1,693,585,397.64
  5. Step 5: Solve for x
    x = 1,693,585,397.64/38,789.04
  6. Step 6: Final answer
    x = 43,661.44

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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.