Home / 38,984.35-53,796.19-21,987.58

Finding the Fourth Proportional to 38,984.35, 53,796.19 and 21,987.58

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Solution

The fourth proportional to 38,984.35, 53,796.19 and 21,987.58 is: 30,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.35 : 53,796.19 = 21,987.58 : x
  2. Step 2: Convert to fraction form
    38,984.35/53,796.19 = 21,987.58/x
  3. Step 3: Cross multiply
    38,984.35x = 53,796.19 × 21,987.58
  4. Step 4: Simplify right side
    38,984.35x = 1,182,848,031.32
  5. Step 5: Solve for x
    x = 1,182,848,031.32/38,984.35
  6. Step 6: Final answer
    x = 30,341.61

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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.