Home / 30,212.92-45,268.24-18,501.68

Finding the Fourth Proportional to 30,212.92, 45,268.24 and 18,501.68

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Solution

The fourth proportional to 30,212.92, 45,268.24 and 18,501.68 is: 27,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.92 : 45,268.24 = 18,501.68 : x
  2. Step 2: Convert to fraction form
    30,212.92/45,268.24 = 18,501.68/x
  3. Step 3: Cross multiply
    30,212.92x = 45,268.24 × 18,501.68
  4. Step 4: Simplify right side
    30,212.92x = 837,538,490.64
  5. Step 5: Solve for x
    x = 837,538,490.64/30,212.92
  6. Step 6: Final answer
    x = 27,721.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.