Home / 27,790.56-38,347.39-15,853.18

Finding the Fourth Proportional to 27,790.56, 38,347.39 and 15,853.18

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Solution

The fourth proportional to 27,790.56, 38,347.39 and 15,853.18 is: 21,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.56 : 38,347.39 = 15,853.18 : x
  2. Step 2: Convert to fraction form
    27,790.56/38,347.39 = 15,853.18/x
  3. Step 3: Cross multiply
    27,790.56x = 38,347.39 × 15,853.18
  4. Step 4: Simplify right side
    27,790.56x = 607,928,076.20
  5. Step 5: Solve for x
    x = 607,928,076.20/27,790.56
  6. Step 6: Final answer
    x = 21,875.34

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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.