Home / 20,401.29-30,602.07-5,611.77

Finding the Fourth Proportional to 20,401.29, 30,602.07 and 5,611.77

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Solution

The fourth proportional to 20,401.29, 30,602.07 and 5,611.77 is: 8,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.29 : 30,602.07 = 5,611.77 : x
  2. Step 2: Convert to fraction form
    20,401.29/30,602.07 = 5,611.77/x
  3. Step 3: Cross multiply
    20,401.29x = 30,602.07 × 5,611.77
  4. Step 4: Simplify right side
    20,401.29x = 171,731,778.36
  5. Step 5: Solve for x
    x = 171,731,778.36/20,401.29
  6. Step 6: Final answer
    x = 8,417.69

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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.