Home / 30,138.04-45,201.90-7,951.65

Finding the Fourth Proportional to 30,138.04, 45,201.90 and 7,951.65

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Solution

The fourth proportional to 30,138.04, 45,201.90 and 7,951.65 is: 11,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.04 : 45,201.90 = 7,951.65 : x
  2. Step 2: Convert to fraction form
    30,138.04/45,201.90 = 7,951.65/x
  3. Step 3: Cross multiply
    30,138.04x = 45,201.90 × 7,951.65
  4. Step 4: Simplify right side
    30,138.04x = 359,429,462.13
  5. Step 5: Solve for x
    x = 359,429,462.13/30,138.04
  6. Step 6: Final answer
    x = 11,926.11

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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.