Home / 30,758.87-42,447.23-16,611.71

Finding the Fourth Proportional to 30,758.87, 42,447.23 and 16,611.71

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Solution

The fourth proportional to 30,758.87, 42,447.23 and 16,611.71 is: 22,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.87 : 42,447.23 = 16,611.71 : x
  2. Step 2: Convert to fraction form
    30,758.87/42,447.23 = 16,611.71/x
  3. Step 3: Cross multiply
    30,758.87x = 42,447.23 × 16,611.71
  4. Step 4: Simplify right side
    30,758.87x = 705,120,862.83
  5. Step 5: Solve for x
    x = 705,120,862.83/30,758.87
  6. Step 6: Final answer
    x = 22,924.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.