Home / 28,370.84-39,149.34-15,796.76

Finding the Fourth Proportional to 28,370.84, 39,149.34 and 15,796.76

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Solution

The fourth proportional to 28,370.84, 39,149.34 and 15,796.76 is: 21,798.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.84 : 39,149.34 = 15,796.76 : x
  2. Step 2: Convert to fraction form
    28,370.84/39,149.34 = 15,796.76/x
  3. Step 3: Cross multiply
    28,370.84x = 39,149.34 × 15,796.76
  4. Step 4: Simplify right side
    28,370.84x = 618,432,728.14
  5. Step 5: Solve for x
    x = 618,432,728.14/28,370.84
  6. Step 6: Final answer
    x = 21,798.18

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Double scale
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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.