Home / 28,057.72-42,111.10-11,426.84

Finding the Fourth Proportional to 28,057.72, 42,111.10 and 11,426.84

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Solution

The fourth proportional to 28,057.72, 42,111.10 and 11,426.84 is: 17,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.72 : 42,111.10 = 11,426.84 : x
  2. Step 2: Convert to fraction form
    28,057.72/42,111.10 = 11,426.84/x
  3. Step 3: Cross multiply
    28,057.72x = 42,111.10 × 11,426.84
  4. Step 4: Simplify right side
    28,057.72x = 481,196,801.92
  5. Step 5: Solve for x
    x = 481,196,801.92/28,057.72
  6. Step 6: Final answer
    x = 17,150.25

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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.