Home / 31,306.20-46,966.98-9,119.77

Finding the Fourth Proportional to 31,306.20, 46,966.98 and 9,119.77

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Solution

The fourth proportional to 31,306.20, 46,966.98 and 9,119.77 is: 13,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.20 : 46,966.98 = 9,119.77 : x
  2. Step 2: Convert to fraction form
    31,306.20/46,966.98 = 9,119.77/x
  3. Step 3: Cross multiply
    31,306.20x = 46,966.98 × 9,119.77
  4. Step 4: Simplify right side
    31,306.20x = 428,327,971.98
  5. Step 5: Solve for x
    x = 428,327,971.98/31,306.20
  6. Step 6: Final answer
    x = 13,681.89

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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.