Home / 30,002.26-45,030.78-15,221.38

Finding the Fourth Proportional to 30,002.26, 45,030.78 and 15,221.38

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Solution

The fourth proportional to 30,002.26, 45,030.78 and 15,221.38 is: 22,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.26 : 45,030.78 = 15,221.38 : x
  2. Step 2: Convert to fraction form
    30,002.26/45,030.78 = 15,221.38/x
  3. Step 3: Cross multiply
    30,002.26x = 45,030.78 × 15,221.38
  4. Step 4: Simplify right side
    30,002.26x = 685,430,614.08
  5. Step 5: Solve for x
    x = 685,430,614.08/30,002.26
  6. Step 6: Final answer
    x = 22,845.97

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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.