Home / 30,208.60-41,689.86-18,272.44

Finding the Fourth Proportional to 30,208.60, 41,689.86 and 18,272.44

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Solution

The fourth proportional to 30,208.60, 41,689.86 and 18,272.44 is: 25,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.60 : 41,689.86 = 18,272.44 : x
  2. Step 2: Convert to fraction form
    30,208.60/41,689.86 = 18,272.44/x
  3. Step 3: Cross multiply
    30,208.60x = 41,689.86 × 18,272.44
  4. Step 4: Simplify right side
    30,208.60x = 761,775,465.46
  5. Step 5: Solve for x
    x = 761,775,465.46/30,208.60
  6. Step 6: Final answer
    x = 25,217.17

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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.