Home / 42,849.36-64,264.32-15,147.36

Finding the Fourth Proportional to 42,849.36, 64,264.32 and 15,147.36

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Solution

The fourth proportional to 42,849.36, 64,264.32 and 15,147.36 is: 22,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,849.36 : 64,264.32 = 15,147.36 : x
  2. Step 2: Convert to fraction form
    42,849.36/64,264.32 = 15,147.36/x
  3. Step 3: Cross multiply
    42,849.36x = 64,264.32 × 15,147.36
  4. Step 4: Simplify right side
    42,849.36x = 973,434,790.20
  5. Step 5: Solve for x
    x = 973,434,790.20/42,849.36
  6. Step 6: Final answer
    x = 22,717.60

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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.