Home / 27,801.44-38,356.40-15,856.16

Finding the Fourth Proportional to 27,801.44, 38,356.40 and 15,856.16

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Solution

The fourth proportional to 27,801.44, 38,356.40 and 15,856.16 is: 21,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.44 : 38,356.40 = 15,856.16 : x
  2. Step 2: Convert to fraction form
    27,801.44/38,356.40 = 15,856.16/x
  3. Step 3: Cross multiply
    27,801.44x = 38,356.40 × 15,856.16
  4. Step 4: Simplify right side
    27,801.44x = 608,185,215.42
  5. Step 5: Solve for x
    x = 608,185,215.42/27,801.44
  6. Step 6: Final answer
    x = 21,876.03

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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.