Home / 31,287.20-46,930.59-7,913.70

Finding the Fourth Proportional to 31,287.20, 46,930.59 and 7,913.70

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Solution

The fourth proportional to 31,287.20, 46,930.59 and 7,913.70 is: 11,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.20 : 46,930.59 = 7,913.70 : x
  2. Step 2: Convert to fraction form
    31,287.20/46,930.59 = 7,913.70/x
  3. Step 3: Cross multiply
    31,287.20x = 46,930.59 × 7,913.70
  4. Step 4: Simplify right side
    31,287.20x = 371,394,610.08
  5. Step 5: Solve for x
    x = 371,394,610.08/31,287.20
  6. Step 6: Final answer
    x = 11,870.50

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1.5x scale

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.