Home / 28,091.44-38,766.47-15,991.32

Finding the Fourth Proportional to 28,091.44, 38,766.47 and 15,991.32

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Solution

The fourth proportional to 28,091.44, 38,766.47 and 15,991.32 is: 22,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.44 : 38,766.47 = 15,991.32 : x
  2. Step 2: Convert to fraction form
    28,091.44/38,766.47 = 15,991.32/x
  3. Step 3: Cross multiply
    28,091.44x = 38,766.47 × 15,991.32
  4. Step 4: Simplify right side
    28,091.44x = 619,927,092.46
  5. Step 5: Solve for x
    x = 619,927,092.46/28,091.44
  6. Step 6: Final answer
    x = 22,068.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.