Home / 30,758.78-42,447.10-16,611.62

Finding the Fourth Proportional to 30,758.78, 42,447.10 and 16,611.62

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Solution

The fourth proportional to 30,758.78, 42,447.10 and 16,611.62 is: 22,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.78 : 42,447.10 = 16,611.62 : x
  2. Step 2: Convert to fraction form
    30,758.78/42,447.10 = 16,611.62/x
  3. Step 3: Cross multiply
    30,758.78x = 42,447.10 × 16,611.62
  4. Step 4: Simplify right side
    30,758.78x = 705,115,012.24
  5. Step 5: Solve for x
    x = 705,115,012.24/30,758.78
  6. Step 6: Final answer
    x = 22,924.03

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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.