Home / 28,141.56-38,836.57-15,566.31

Finding the Fourth Proportional to 28,141.56, 38,836.57 and 15,566.31

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Solution

The fourth proportional to 28,141.56, 38,836.57 and 15,566.31 is: 21,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.56 : 38,836.57 = 15,566.31 : x
  2. Step 2: Convert to fraction form
    28,141.56/38,836.57 = 15,566.31/x
  3. Step 3: Cross multiply
    28,141.56x = 38,836.57 × 15,566.31
  4. Step 4: Simplify right side
    28,141.56x = 604,542,087.96
  5. Step 5: Solve for x
    x = 604,542,087.96/28,141.56
  6. Step 6: Final answer
    x = 21,482.18

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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.