Home / 27,619.83-38,115.81-15,683.49

Finding the Fourth Proportional to 27,619.83, 38,115.81 and 15,683.49

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Solution

The fourth proportional to 27,619.83, 38,115.81 and 15,683.49 is: 21,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,619.83 : 38,115.81 = 15,683.49 : x
  2. Step 2: Convert to fraction form
    27,619.83/38,115.81 = 15,683.49/x
  3. Step 3: Cross multiply
    27,619.83x = 38,115.81 × 15,683.49
  4. Step 4: Simplify right side
    27,619.83x = 597,788,924.98
  5. Step 5: Solve for x
    x = 597,788,924.98/27,619.83
  6. Step 6: Final answer
    x = 21,643.47

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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.