Home / 31,306.48-46,930.32-10,515.40

Finding the Fourth Proportional to 31,306.48, 46,930.32 and 10,515.40

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Solution

The fourth proportional to 31,306.48, 46,930.32 and 10,515.40 is: 15,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.48 : 46,930.32 = 10,515.40 : x
  2. Step 2: Convert to fraction form
    31,306.48/46,930.32 = 10,515.40/x
  3. Step 3: Cross multiply
    31,306.48x = 46,930.32 × 10,515.40
  4. Step 4: Simplify right side
    31,306.48x = 493,491,086.93
  5. Step 5: Solve for x
    x = 493,491,086.93/31,306.48
  6. Step 6: Final answer
    x = 15,763.22

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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.