Home / 30,611.74-42,239.19-18,034.78

Finding the Fourth Proportional to 30,611.74, 42,239.19 and 18,034.78

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Solution

The fourth proportional to 30,611.74, 42,239.19 and 18,034.78 is: 24,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.74 : 42,239.19 = 18,034.78 : x
  2. Step 2: Convert to fraction form
    30,611.74/42,239.19 = 18,034.78/x
  3. Step 3: Cross multiply
    30,611.74x = 42,239.19 × 18,034.78
  4. Step 4: Simplify right side
    30,611.74x = 761,774,499.03
  5. Step 5: Solve for x
    x = 761,774,499.03/30,611.74
  6. Step 6: Final answer
    x = 24,885.04

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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.