Home / 31,085.12-46,619.84-8,898.64

Finding the Fourth Proportional to 31,085.12, 46,619.84 and 8,898.64

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Solution

The fourth proportional to 31,085.12, 46,619.84 and 8,898.64 is: 13,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085.12 : 46,619.84 = 8,898.64 : x
  2. Step 2: Convert to fraction form
    31,085.12/46,619.84 = 8,898.64/x
  3. Step 3: Cross multiply
    31,085.12x = 46,619.84 × 8,898.64
  4. Step 4: Simplify right side
    31,085.12x = 414,853,173.02
  5. Step 5: Solve for x
    x = 414,853,173.02/31,085.12
  6. Step 6: Final answer
    x = 13,345.72

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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.