Home / 31,020.18-46,557.84-20,460.66

Finding the Fourth Proportional to 31,020.18, 46,557.84 and 20,460.66

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Solution

The fourth proportional to 31,020.18, 46,557.84 and 20,460.66 is: 30,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.18 : 46,557.84 = 20,460.66 : x
  2. Step 2: Convert to fraction form
    31,020.18/46,557.84 = 20,460.66/x
  3. Step 3: Cross multiply
    31,020.18x = 46,557.84 × 20,460.66
  4. Step 4: Simplify right side
    31,020.18x = 952,604,134.57
  5. Step 5: Solve for x
    x = 952,604,134.57/31,020.18
  6. Step 6: Final answer
    x = 30,709.17

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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.