Home / 28,073.10-38,740.62-15,497.82

Finding the Fourth Proportional to 28,073.10, 38,740.62 and 15,497.82

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Solution

The fourth proportional to 28,073.10, 38,740.62 and 15,497.82 is: 21,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.10 : 38,740.62 = 15,497.82 : x
  2. Step 2: Convert to fraction form
    28,073.10/38,740.62 = 15,497.82/x
  3. Step 3: Cross multiply
    28,073.10x = 38,740.62 × 15,497.82
  4. Step 4: Simplify right side
    28,073.10x = 600,395,155.45
  5. Step 5: Solve for x
    x = 600,395,155.45/28,073.10
  6. Step 6: Final answer
    x = 21,386.85

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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.