Home / 42,796.24-64,201.28-13,207.16

Finding the Fourth Proportional to 42,796.24, 64,201.28 and 13,207.16

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Solution

The fourth proportional to 42,796.24, 64,201.28 and 13,207.16 is: 19,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,796.24 : 64,201.28 = 13,207.16 : x
  2. Step 2: Convert to fraction form
    42,796.24/64,201.28 = 13,207.16/x
  3. Step 3: Cross multiply
    42,796.24x = 64,201.28 × 13,207.16
  4. Step 4: Simplify right side
    42,796.24x = 847,916,577.16
  5. Step 5: Solve for x
    x = 847,916,577.16/42,796.24
  6. Step 6: Final answer
    x = 19,812.88

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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.