Home / 38,983.14-53,795.46-21,987.84

Finding the Fourth Proportional to 38,983.14, 53,795.46 and 21,987.84

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Solution

The fourth proportional to 38,983.14, 53,795.46 and 21,987.84 is: 30,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,983.14 : 53,795.46 = 21,987.84 : x
  2. Step 2: Convert to fraction form
    38,983.14/53,795.46 = 21,987.84/x
  3. Step 3: Cross multiply
    38,983.14x = 53,795.46 × 21,987.84
  4. Step 4: Simplify right side
    38,983.14x = 1,182,845,967.21
  5. Step 5: Solve for x
    x = 1,182,845,967.21/38,983.14
  6. Step 6: Final answer
    x = 30,342.50

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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.