Home / 28,057.01-42,087.30-11,407.94

Finding the Fourth Proportional to 28,057.01, 42,087.30 and 11,407.94

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Solution

The fourth proportional to 28,057.01, 42,087.30 and 11,407.94 is: 17,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.01 : 42,087.30 = 11,407.94 : x
  2. Step 2: Convert to fraction form
    28,057.01/42,087.30 = 11,407.94/x
  3. Step 3: Cross multiply
    28,057.01x = 42,087.30 × 11,407.94
  4. Step 4: Simplify right side
    28,057.01x = 480,129,297.77
  5. Step 5: Solve for x
    x = 480,129,297.77/28,057.01
  6. Step 6: Final answer
    x = 17,112.63

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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.