Home / 31,185.74-46,782.82-10,118.90

Finding the Fourth Proportional to 31,185.74, 46,782.82 and 10,118.90

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Solution

The fourth proportional to 31,185.74, 46,782.82 and 10,118.90 is: 15,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,185.74 : 46,782.82 = 10,118.90 : x
  2. Step 2: Convert to fraction form
    31,185.74/46,782.82 = 10,118.90/x
  3. Step 3: Cross multiply
    31,185.74x = 46,782.82 × 10,118.90
  4. Step 4: Simplify right side
    31,185.74x = 473,390,677.30
  5. Step 5: Solve for x
    x = 473,390,677.30/31,185.74
  6. Step 6: Final answer
    x = 15,179.72

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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.