Home / 30,124.22-45,182.46-7,939.30

Finding the Fourth Proportional to 30,124.22, 45,182.46 and 7,939.30

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Solution

The fourth proportional to 30,124.22, 45,182.46 and 7,939.30 is: 11,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,124.22 : 45,182.46 = 7,939.30 : x
  2. Step 2: Convert to fraction form
    30,124.22/45,182.46 = 7,939.30/x
  3. Step 3: Cross multiply
    30,124.22x = 45,182.46 × 7,939.30
  4. Step 4: Simplify right side
    30,124.22x = 358,717,104.68
  5. Step 5: Solve for x
    x = 358,717,104.68/30,124.22
  6. Step 6: Final answer
    x = 11,907.93

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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.