Home / 31,143.18-46,714.77-7,769.55

Finding the Fourth Proportional to 31,143.18, 46,714.77 and 7,769.55

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Solution

The fourth proportional to 31,143.18, 46,714.77 and 7,769.55 is: 11,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143.18 : 46,714.77 = 7,769.55 : x
  2. Step 2: Convert to fraction form
    31,143.18/46,714.77 = 7,769.55/x
  3. Step 3: Cross multiply
    31,143.18x = 46,714.77 × 7,769.55
  4. Step 4: Simplify right side
    31,143.18x = 362,952,741.25
  5. Step 5: Solve for x
    x = 362,952,741.25/31,143.18
  6. Step 6: Final answer
    x = 11,654.33

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Double scale
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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.