Home / 28,449.26-39,258.52-15,871.58

Finding the Fourth Proportional to 28,449.26, 39,258.52 and 15,871.58

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Solution

The fourth proportional to 28,449.26, 39,258.52 and 15,871.58 is: 21,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.26 : 39,258.52 = 15,871.58 : x
  2. Step 2: Convert to fraction form
    28,449.26/39,258.52 = 15,871.58/x
  3. Step 3: Cross multiply
    28,449.26x = 39,258.52 × 15,871.58
  4. Step 4: Simplify right side
    28,449.26x = 623,094,740.86
  5. Step 5: Solve for x
    x = 623,094,740.86/28,449.26
  6. Step 6: Final answer
    x = 21,901.97

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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.