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Finding the Fourth Proportional to 31,375.77, 46,946.01 and 18,679.08

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Solution

The fourth proportional to 31,375.77, 46,946.01 and 18,679.08 is: 27,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,375.77 : 46,946.01 = 18,679.08 : x
  2. Step 2: Convert to fraction form
    31,375.77/46,946.01 = 18,679.08/x
  3. Step 3: Cross multiply
    31,375.77x = 46,946.01 × 18,679.08
  4. Step 4: Simplify right side
    31,375.77x = 876,908,390.53
  5. Step 5: Solve for x
    x = 876,908,390.53/31,375.77
  6. Step 6: Final answer
    x = 27,948.59

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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.