Home / 31,140.29-46,708.51-10,079.87

Finding the Fourth Proportional to 31,140.29, 46,708.51 and 10,079.87

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Solution

The fourth proportional to 31,140.29, 46,708.51 and 10,079.87 is: 15,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.29 : 46,708.51 = 10,079.87 : x
  2. Step 2: Convert to fraction form
    31,140.29/46,708.51 = 10,079.87/x
  3. Step 3: Cross multiply
    31,140.29x = 46,708.51 × 10,079.87
  4. Step 4: Simplify right side
    31,140.29x = 470,815,449.95
  5. Step 5: Solve for x
    x = 470,815,449.95/31,140.29
  6. Step 6: Final answer
    x = 15,119.18

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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.