Home / 30,209.22-41,688.68-18,272.52

Finding the Fourth Proportional to 30,209.22, 41,688.68 and 18,272.52

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Solution

The fourth proportional to 30,209.22, 41,688.68 and 18,272.52 is: 25,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.22 : 41,688.68 = 18,272.52 : x
  2. Step 2: Convert to fraction form
    30,209.22/41,688.68 = 18,272.52/x
  3. Step 3: Cross multiply
    30,209.22x = 41,688.68 × 18,272.52
  4. Step 4: Simplify right side
    30,209.22x = 761,757,147.71
  5. Step 5: Solve for x
    x = 761,757,147.71/30,209.22
  6. Step 6: Final answer
    x = 25,216.05

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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.