Home / 20,669.54-30,985.95-7,519.46

Finding the Fourth Proportional to 20,669.54, 30,985.95 and 7,519.46

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Solution

The fourth proportional to 20,669.54, 30,985.95 and 7,519.46 is: 11,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.54 : 30,985.95 = 7,519.46 : x
  2. Step 2: Convert to fraction form
    20,669.54/30,985.95 = 7,519.46/x
  3. Step 3: Cross multiply
    20,669.54x = 30,985.95 × 7,519.46
  4. Step 4: Simplify right side
    20,669.54x = 232,997,611.59
  5. Step 5: Solve for x
    x = 232,997,611.59/20,669.54
  6. Step 6: Final answer
    x = 11,272.51

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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.