Home / 28,066.56-38,731.52-15,491.04

Finding the Fourth Proportional to 28,066.56, 38,731.52 and 15,491.04

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Solution

The fourth proportional to 28,066.56, 38,731.52 and 15,491.04 is: 21,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.56 : 38,731.52 = 15,491.04 : x
  2. Step 2: Convert to fraction form
    28,066.56/38,731.52 = 15,491.04/x
  3. Step 3: Cross multiply
    28,066.56x = 38,731.52 × 15,491.04
  4. Step 4: Simplify right side
    28,066.56x = 599,991,525.58
  5. Step 5: Solve for x
    x = 599,991,525.58/28,066.56
  6. Step 6: Final answer
    x = 21,377.45

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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.