Home / 30,758.81-42,447.17-16,611.66

Finding the Fourth Proportional to 30,758.81, 42,447.17 and 16,611.66

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Solution

The fourth proportional to 30,758.81, 42,447.17 and 16,611.66 is: 22,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.81 : 42,447.17 = 16,611.66 : x
  2. Step 2: Convert to fraction form
    30,758.81/42,447.17 = 16,611.66/x
  3. Step 3: Cross multiply
    30,758.81x = 42,447.17 × 16,611.66
  4. Step 4: Simplify right side
    30,758.81x = 705,117,997.53
  5. Step 5: Solve for x
    x = 705,117,997.53/30,758.81
  6. Step 6: Final answer
    x = 22,924.10

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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.