Home / 17,428.63-26,143.95-4,947.68

Finding the Fourth Proportional to 17,428.63, 26,143.95 and 4,947.68

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Solution

The fourth proportional to 17,428.63, 26,143.95 and 4,947.68 is: 7,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.63 : 26,143.95 = 4,947.68 : x
  2. Step 2: Convert to fraction form
    17,428.63/26,143.95 = 4,947.68/x
  3. Step 3: Cross multiply
    17,428.63x = 26,143.95 × 4,947.68
  4. Step 4: Simplify right side
    17,428.63x = 129,351,898.54
  5. Step 5: Solve for x
    x = 129,351,898.54/17,428.63
  6. Step 6: Final answer
    x = 7,421.81

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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.