Home / 30,013.82-45,020.76-7,827.18

Finding the Fourth Proportional to 30,013.82, 45,020.76 and 7,827.18

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Solution

The fourth proportional to 30,013.82, 45,020.76 and 7,827.18 is: 11,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,013.82 : 45,020.76 = 7,827.18 : x
  2. Step 2: Convert to fraction form
    30,013.82/45,020.76 = 7,827.18/x
  3. Step 3: Cross multiply
    30,013.82x = 45,020.76 × 7,827.18
  4. Step 4: Simplify right side
    30,013.82x = 352,385,592.26
  5. Step 5: Solve for x
    x = 352,385,592.26/30,013.82
  6. Step 6: Final answer
    x = 11,740.78

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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.