Home / 30,045.06-45,063.66-7,860.15

Finding the Fourth Proportional to 30,045.06, 45,063.66 and 7,860.15

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Solution

The fourth proportional to 30,045.06, 45,063.66 and 7,860.15 is: 11,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,045.06 : 45,063.66 = 7,860.15 : x
  2. Step 2: Convert to fraction form
    30,045.06/45,063.66 = 7,860.15/x
  3. Step 3: Cross multiply
    30,045.06x = 45,063.66 × 7,860.15
  4. Step 4: Simplify right side
    30,045.06x = 354,207,127.15
  5. Step 5: Solve for x
    x = 354,207,127.15/30,045.06
  6. Step 6: Final answer
    x = 11,789.20

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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.