Home / 28,867.80-43,338.15-15,551.40

Finding the Fourth Proportional to 28,867.80, 43,338.15 and 15,551.40

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Solution

The fourth proportional to 28,867.80, 43,338.15 and 15,551.40 is: 23,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.80 : 43,338.15 = 15,551.40 : x
  2. Step 2: Convert to fraction form
    28,867.80/43,338.15 = 15,551.40/x
  3. Step 3: Cross multiply
    28,867.80x = 43,338.15 × 15,551.40
  4. Step 4: Simplify right side
    28,867.80x = 673,968,905.91
  5. Step 5: Solve for x
    x = 673,968,905.91/28,867.80
  6. Step 6: Final answer
    x = 23,346.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.