Home / 27,641.07-38,145.70-15,706.43

Finding the Fourth Proportional to 27,641.07, 38,145.70 and 15,706.43

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Solution

The fourth proportional to 27,641.07, 38,145.70 and 15,706.43 is: 21,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.07 : 38,145.70 = 15,706.43 : x
  2. Step 2: Convert to fraction form
    27,641.07/38,145.70 = 15,706.43/x
  3. Step 3: Cross multiply
    27,641.07x = 38,145.70 × 15,706.43
  4. Step 4: Simplify right side
    27,641.07x = 599,132,497.59
  5. Step 5: Solve for x
    x = 599,132,497.59/27,641.07
  6. Step 6: Final answer
    x = 21,675.45

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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.