Home / 28,503.98-39,335.43-15,928.73

Finding the Fourth Proportional to 28,503.98, 39,335.43 and 15,928.73

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Solution

The fourth proportional to 28,503.98, 39,335.43 and 15,928.73 is: 21,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.98 : 39,335.43 = 15,928.73 : x
  2. Step 2: Convert to fraction form
    28,503.98/39,335.43 = 15,928.73/x
  3. Step 3: Cross multiply
    28,503.98x = 39,335.43 × 15,928.73
  4. Step 4: Simplify right side
    28,503.98x = 626,563,443.90
  5. Step 5: Solve for x
    x = 626,563,443.90/28,503.98
  6. Step 6: Final answer
    x = 21,981.61

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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.