Home / 20,091.95-30,133.80-7,607.66

Finding the Fourth Proportional to 20,091.95, 30,133.80 and 7,607.66

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Solution

The fourth proportional to 20,091.95, 30,133.80 and 7,607.66 is: 11,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.95 : 30,133.80 = 7,607.66 : x
  2. Step 2: Convert to fraction form
    20,091.95/30,133.80 = 7,607.66/x
  3. Step 3: Cross multiply
    20,091.95x = 30,133.80 × 7,607.66
  4. Step 4: Simplify right side
    20,091.95x = 229,247,780.24
  5. Step 5: Solve for x
    x = 229,247,780.24/20,091.95
  6. Step 6: Final answer
    x = 11,409.93

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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.