Home / 28,481.46-39,303.48-15,733.92

Finding the Fourth Proportional to 28,481.46, 39,303.48 and 15,733.92

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Solution

The fourth proportional to 28,481.46, 39,303.48 and 15,733.92 is: 21,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.46 : 39,303.48 = 15,733.92 : x
  2. Step 2: Convert to fraction form
    28,481.46/39,303.48 = 15,733.92/x
  3. Step 3: Cross multiply
    28,481.46x = 39,303.48 × 15,733.92
  4. Step 4: Simplify right side
    28,481.46x = 618,397,810.04
  5. Step 5: Solve for x
    x = 618,397,810.04/28,481.46
  6. Step 6: Final answer
    x = 21,712.29

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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.