Home / 27,784.70-38,342.48-15,848.22

Finding the Fourth Proportional to 27,784.70, 38,342.48 and 15,848.22

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Solution

The fourth proportional to 27,784.70, 38,342.48 and 15,848.22 is: 21,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.70 : 38,342.48 = 15,848.22 : x
  2. Step 2: Convert to fraction form
    27,784.70/38,342.48 = 15,848.22/x
  3. Step 3: Cross multiply
    27,784.70x = 38,342.48 × 15,848.22
  4. Step 4: Simplify right side
    27,784.70x = 607,659,979.14
  5. Step 5: Solve for x
    x = 607,659,979.14/27,784.70
  6. Step 6: Final answer
    x = 21,870.31

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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.