Home / 27,641.09-38,145.73-15,706.44

Finding the Fourth Proportional to 27,641.09, 38,145.73 and 15,706.44

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Solution

The fourth proportional to 27,641.09, 38,145.73 and 15,706.44 is: 21,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.09 : 38,145.73 = 15,706.44 : x
  2. Step 2: Convert to fraction form
    27,641.09/38,145.73 = 15,706.44/x
  3. Step 3: Cross multiply
    27,641.09x = 38,145.73 × 15,706.44
  4. Step 4: Simplify right side
    27,641.09x = 599,133,619.50
  5. Step 5: Solve for x
    x = 599,133,619.50/27,641.09
  6. Step 6: Final answer
    x = 21,675.47

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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.