Home / 28,935-43,386.86-15,615.16

Finding the Fourth Proportional to 28,935, 43,386.86 and 15,615.16

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Solution

The fourth proportional to 28,935, 43,386.86 and 15,615.16 is: 23,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935 : 43,386.86 = 15,615.16 : x
  2. Step 2: Convert to fraction form
    28,935/43,386.86 = 15,615.16/x
  3. Step 3: Cross multiply
    28,935x = 43,386.86 × 15,615.16
  4. Step 4: Simplify right side
    28,935x = 677,492,691.37
  5. Step 5: Solve for x
    x = 677,492,691.37/28,935
  6. Step 6: Final answer
    x = 23,414.30

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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.