Home / 27,876.96-38,472.84-15,303.60

Finding the Fourth Proportional to 27,876.96, 38,472.84 and 15,303.60

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Solution

The fourth proportional to 27,876.96, 38,472.84 and 15,303.60 is: 21,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876.96 : 38,472.84 = 15,303.60 : x
  2. Step 2: Convert to fraction form
    27,876.96/38,472.84 = 15,303.60/x
  3. Step 3: Cross multiply
    27,876.96x = 38,472.84 × 15,303.60
  4. Step 4: Simplify right side
    27,876.96x = 588,772,954.22
  5. Step 5: Solve for x
    x = 588,772,954.22/27,876.96
  6. Step 6: Final answer
    x = 21,120.41

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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.