Home / 28,610.75-39,485.17-15,867.93

Finding the Fourth Proportional to 28,610.75, 39,485.17 and 15,867.93

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Solution

The fourth proportional to 28,610.75, 39,485.17 and 15,867.93 is: 21,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.75 : 39,485.17 = 15,867.93 : x
  2. Step 2: Convert to fraction form
    28,610.75/39,485.17 = 15,867.93/x
  3. Step 3: Cross multiply
    28,610.75x = 39,485.17 × 15,867.93
  4. Step 4: Simplify right side
    28,610.75x = 626,548,081.50
  5. Step 5: Solve for x
    x = 626,548,081.50/28,610.75
  6. Step 6: Final answer
    x = 21,899.04

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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.