Home / 28,429.56-39,233.04-15,854.52

Finding the Fourth Proportional to 28,429.56, 39,233.04 and 15,854.52

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Solution

The fourth proportional to 28,429.56, 39,233.04 and 15,854.52 is: 21,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.56 : 39,233.04 = 15,854.52 : x
  2. Step 2: Convert to fraction form
    28,429.56/39,233.04 = 15,854.52/x
  3. Step 3: Cross multiply
    28,429.56x = 39,233.04 × 15,854.52
  4. Step 4: Simplify right side
    28,429.56x = 622,021,017.34
  5. Step 5: Solve for x
    x = 622,021,017.34/28,429.56
  6. Step 6: Final answer
    x = 21,879.38

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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.