Home / 30,003.20-45,000.84-7,818.08

Finding the Fourth Proportional to 30,003.20, 45,000.84 and 7,818.08

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Solution

The fourth proportional to 30,003.20, 45,000.84 and 7,818.08 is: 11,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.20 : 45,000.84 = 7,818.08 : x
  2. Step 2: Convert to fraction form
    30,003.20/45,000.84 = 7,818.08/x
  3. Step 3: Cross multiply
    30,003.20x = 45,000.84 × 7,818.08
  4. Step 4: Simplify right side
    30,003.20x = 351,820,167.19
  5. Step 5: Solve for x
    x = 351,820,167.19/30,003.20
  6. Step 6: Final answer
    x = 11,726.09

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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.