Home / 20,363.90-28,097.28-11,860.88

Finding the Fourth Proportional to 20,363.90, 28,097.28 and 11,860.88

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Solution

The fourth proportional to 20,363.90, 28,097.28 and 11,860.88 is: 16,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.90 : 28,097.28 = 11,860.88 : x
  2. Step 2: Convert to fraction form
    20,363.90/28,097.28 = 11,860.88/x
  3. Step 3: Cross multiply
    20,363.90x = 28,097.28 × 11,860.88
  4. Step 4: Simplify right side
    20,363.90x = 333,258,325.92
  5. Step 5: Solve for x
    x = 333,258,325.92/20,363.90
  6. Step 6: Final answer
    x = 16,365.16

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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.