Home / 35,143.72-52,715.68-12,947.48

Finding the Fourth Proportional to 35,143.72, 52,715.68 and 12,947.48

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Solution

The fourth proportional to 35,143.72, 52,715.68 and 12,947.48 is: 19,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,143.72 : 52,715.68 = 12,947.48 : x
  2. Step 2: Convert to fraction form
    35,143.72/52,715.68 = 12,947.48/x
  3. Step 3: Cross multiply
    35,143.72x = 52,715.68 × 12,947.48
  4. Step 4: Simplify right side
    35,143.72x = 682,535,212.49
  5. Step 5: Solve for x
    x = 682,535,212.49/35,143.72
  6. Step 6: Final answer
    x = 19,421.26

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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.