Home / 31,296.08-46,947.20-9,109.68

Finding the Fourth Proportional to 31,296.08, 46,947.20 and 9,109.68

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Solution

The fourth proportional to 31,296.08, 46,947.20 and 9,109.68 is: 13,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,296.08 : 46,947.20 = 9,109.68 : x
  2. Step 2: Convert to fraction form
    31,296.08/46,947.20 = 9,109.68/x
  3. Step 3: Cross multiply
    31,296.08x = 46,947.20 × 9,109.68
  4. Step 4: Simplify right side
    31,296.08x = 427,673,968.90
  5. Step 5: Solve for x
    x = 427,673,968.90/31,296.08
  6. Step 6: Final answer
    x = 13,665.42

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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.