Home / 30,002.22-45,003.32-9,225.72

Finding the Fourth Proportional to 30,002.22, 45,003.32 and 9,225.72

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Solution

The fourth proportional to 30,002.22, 45,003.32 and 9,225.72 is: 13,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.22 : 45,003.32 = 9,225.72 : x
  2. Step 2: Convert to fraction form
    30,002.22/45,003.32 = 9,225.72/x
  3. Step 3: Cross multiply
    30,002.22x = 45,003.32 × 9,225.72
  4. Step 4: Simplify right side
    30,002.22x = 415,187,827.44
  5. Step 5: Solve for x
    x = 415,187,827.44/30,002.22
  6. Step 6: Final answer
    x = 13,838.57

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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.