Home / 30,210.52-41,691.42-18,276.04

Finding the Fourth Proportional to 30,210.52, 41,691.42 and 18,276.04

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Solution

The fourth proportional to 30,210.52, 41,691.42 and 18,276.04 is: 25,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.52 : 41,691.42 = 18,276.04 : x
  2. Step 2: Convert to fraction form
    30,210.52/41,691.42 = 18,276.04/x
  3. Step 3: Cross multiply
    30,210.52x = 41,691.42 × 18,276.04
  4. Step 4: Simplify right side
    30,210.52x = 761,954,059.58
  5. Step 5: Solve for x
    x = 761,954,059.58/30,210.52
  6. Step 6: Final answer
    x = 25,221.48

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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.