Home / 27,788.58-38,346.84-15,851.46

Finding the Fourth Proportional to 27,788.58, 38,346.84 and 15,851.46

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Solution

The fourth proportional to 27,788.58, 38,346.84 and 15,851.46 is: 21,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.58 : 38,346.84 = 15,851.46 : x
  2. Step 2: Convert to fraction form
    27,788.58/38,346.84 = 15,851.46/x
  3. Step 3: Cross multiply
    27,788.58x = 38,346.84 × 15,851.46
  4. Step 4: Simplify right side
    27,788.58x = 607,853,400.39
  5. Step 5: Solve for x
    x = 607,853,400.39/27,788.58
  6. Step 6: Final answer
    x = 21,874.22

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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.