Home / 28,066.77-38,731.91-15,491.25

Finding the Fourth Proportional to 28,066.77, 38,731.91 and 15,491.25

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Solution

The fourth proportional to 28,066.77, 38,731.91 and 15,491.25 is: 21,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.77 : 38,731.91 = 15,491.25 : x
  2. Step 2: Convert to fraction form
    28,066.77/38,731.91 = 15,491.25/x
  3. Step 3: Cross multiply
    28,066.77x = 38,731.91 × 15,491.25
  4. Step 4: Simplify right side
    28,066.77x = 600,005,623.33
  5. Step 5: Solve for x
    x = 600,005,623.33/28,066.77
  6. Step 6: Final answer
    x = 21,377.79

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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.