Home / 28,116.18-38,801.97-15,542.10

Finding the Fourth Proportional to 28,116.18, 38,801.97 and 15,542.10

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Solution

The fourth proportional to 28,116.18, 38,801.97 and 15,542.10 is: 21,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.18 : 38,801.97 = 15,542.10 : x
  2. Step 2: Convert to fraction form
    28,116.18/38,801.97 = 15,542.10/x
  3. Step 3: Cross multiply
    28,116.18x = 38,801.97 × 15,542.10
  4. Step 4: Simplify right side
    28,116.18x = 603,064,097.94
  5. Step 5: Solve for x
    x = 603,064,097.94/28,116.18
  6. Step 6: Final answer
    x = 21,449.01

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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.