Home / 27,776.58-38,332.58-15,201.32

Finding the Fourth Proportional to 27,776.58, 38,332.58 and 15,201.32

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Solution

The fourth proportional to 27,776.58, 38,332.58 and 15,201.32 is: 20,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,776.58 : 38,332.58 = 15,201.32 : x
  2. Step 2: Convert to fraction form
    27,776.58/38,332.58 = 15,201.32/x
  3. Step 3: Cross multiply
    27,776.58x = 38,332.58 × 15,201.32
  4. Step 4: Simplify right side
    27,776.58x = 582,705,815.01
  5. Step 5: Solve for x
    x = 582,705,815.01/27,776.58
  6. Step 6: Final answer
    x = 20,978.31

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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.