Home / 27,779.12-38,334.24-15,846.32

Finding the Fourth Proportional to 27,779.12, 38,334.24 and 15,846.32

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Solution

The fourth proportional to 27,779.12, 38,334.24 and 15,846.32 is: 21,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.12 : 38,334.24 = 15,846.32 : x
  2. Step 2: Convert to fraction form
    27,779.12/38,334.24 = 15,846.32/x
  3. Step 3: Cross multiply
    27,779.12x = 38,334.24 × 15,846.32
  4. Step 4: Simplify right side
    27,779.12x = 607,456,634.00
  5. Step 5: Solve for x
    x = 607,456,634.00/27,779.12
  6. Step 6: Final answer
    x = 21,867.38

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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.