Home / 46,715.78-70,063.16-13,428.42

Finding the Fourth Proportional to 46,715.78, 70,063.16 and 13,428.42

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Solution

The fourth proportional to 46,715.78, 70,063.16 and 13,428.42 is: 20,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,715.78 : 70,063.16 = 13,428.42 : x
  2. Step 2: Convert to fraction form
    46,715.78/70,063.16 = 13,428.42/x
  3. Step 3: Cross multiply
    46,715.78x = 70,063.16 × 13,428.42
  4. Step 4: Simplify right side
    46,715.78x = 940,837,471.87
  5. Step 5: Solve for x
    x = 940,837,471.87/46,715.78
  6. Step 6: Final answer
    x = 20,139.61

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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.