Home / 30,059.34-41,482.11-18,120.30

Finding the Fourth Proportional to 30,059.34, 41,482.11 and 18,120.30

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Solution

The fourth proportional to 30,059.34, 41,482.11 and 18,120.30 is: 25,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,059.34 : 41,482.11 = 18,120.30 : x
  2. Step 2: Convert to fraction form
    30,059.34/41,482.11 = 18,120.30/x
  3. Step 3: Cross multiply
    30,059.34x = 41,482.11 × 18,120.30
  4. Step 4: Simplify right side
    30,059.34x = 751,668,277.83
  5. Step 5: Solve for x
    x = 751,668,277.83/30,059.34
  6. Step 6: Final answer
    x = 25,006.15

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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.