Home / 28,029.74-42,055.83-11,391.05

Finding the Fourth Proportional to 28,029.74, 42,055.83 and 11,391.05

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Solution

The fourth proportional to 28,029.74, 42,055.83 and 11,391.05 is: 17,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.74 : 42,055.83 = 11,391.05 : x
  2. Step 2: Convert to fraction form
    28,029.74/42,055.83 = 11,391.05/x
  3. Step 3: Cross multiply
    28,029.74x = 42,055.83 × 11,391.05
  4. Step 4: Simplify right side
    28,029.74x = 479,060,062.32
  5. Step 5: Solve for x
    x = 479,060,062.32/28,029.74
  6. Step 6: Final answer
    x = 17,091.13

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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.