Home / 35,143.08-52,721.68-12,956.56

Finding the Fourth Proportional to 35,143.08, 52,721.68 and 12,956.56

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Solution

The fourth proportional to 35,143.08, 52,721.68 and 12,956.56 is: 19,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,143.08 : 52,721.68 = 12,956.56 : x
  2. Step 2: Convert to fraction form
    35,143.08/52,721.68 = 12,956.56/x
  3. Step 3: Cross multiply
    35,143.08x = 52,721.68 × 12,956.56
  4. Step 4: Simplify right side
    35,143.08x = 683,091,610.22
  5. Step 5: Solve for x
    x = 683,091,610.22/35,143.08
  6. Step 6: Final answer
    x = 19,437.44

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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.