Home / 35,143.12-52,721.70-12,956.59

Finding the Fourth Proportional to 35,143.12, 52,721.70 and 12,956.59

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Solution

The fourth proportional to 35,143.12, 52,721.70 and 12,956.59 is: 19,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,143.12 : 52,721.70 = 12,956.59 : x
  2. Step 2: Convert to fraction form
    35,143.12/52,721.70 = 12,956.59/x
  3. Step 3: Cross multiply
    35,143.12x = 52,721.70 × 12,956.59
  4. Step 4: Simplify right side
    35,143.12x = 683,093,451.00
  5. Step 5: Solve for x
    x = 683,093,451.00/35,143.12
  6. Step 6: Final answer
    x = 19,437.47

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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.