Home / 28,707.46-39,616.83-15,961.70

Finding the Fourth Proportional to 28,707.46, 39,616.83 and 15,961.70

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Solution

The fourth proportional to 28,707.46, 39,616.83 and 15,961.70 is: 22,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.46 : 39,616.83 = 15,961.70 : x
  2. Step 2: Convert to fraction form
    28,707.46/39,616.83 = 15,961.70/x
  3. Step 3: Cross multiply
    28,707.46x = 39,616.83 × 15,961.70
  4. Step 4: Simplify right side
    28,707.46x = 632,351,955.41
  5. Step 5: Solve for x
    x = 632,351,955.41/28,707.46
  6. Step 6: Final answer
    x = 22,027.44

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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.