Home / 27,746.56-38,289.88-15,810.60

Finding the Fourth Proportional to 27,746.56, 38,289.88 and 15,810.60

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Solution

The fourth proportional to 27,746.56, 38,289.88 and 15,810.60 is: 21,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,746.56 : 38,289.88 = 15,810.60 : x
  2. Step 2: Convert to fraction form
    27,746.56/38,289.88 = 15,810.60/x
  3. Step 3: Cross multiply
    27,746.56x = 38,289.88 × 15,810.60
  4. Step 4: Simplify right side
    27,746.56x = 605,385,976.73
  5. Step 5: Solve for x
    x = 605,385,976.73/27,746.56
  6. Step 6: Final answer
    x = 21,818.42

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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.