Home / 30,068.94-45,090.92-11,345.78

Finding the Fourth Proportional to 30,068.94, 45,090.92 and 11,345.78

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Solution

The fourth proportional to 30,068.94, 45,090.92 and 11,345.78 is: 17,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.94 : 45,090.92 = 11,345.78 : x
  2. Step 2: Convert to fraction form
    30,068.94/45,090.92 = 11,345.78/x
  3. Step 3: Cross multiply
    30,068.94x = 45,090.92 × 11,345.78
  4. Step 4: Simplify right side
    30,068.94x = 511,591,658.32
  5. Step 5: Solve for x
    x = 511,591,658.32/30,068.94
  6. Step 6: Final answer
    x = 17,013.96

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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.