Home / 30,611.24-42,238.50-18,034.28

Finding the Fourth Proportional to 30,611.24, 42,238.50 and 18,034.28

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Solution

The fourth proportional to 30,611.24, 42,238.50 and 18,034.28 is: 24,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.24 : 42,238.50 = 18,034.28 : x
  2. Step 2: Convert to fraction form
    30,611.24/42,238.50 = 18,034.28/x
  3. Step 3: Cross multiply
    30,611.24x = 42,238.50 × 18,034.28
  4. Step 4: Simplify right side
    30,611.24x = 761,740,935.78
  5. Step 5: Solve for x
    x = 761,740,935.78/30,611.24
  6. Step 6: Final answer
    x = 24,884.35

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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.