Home / 27,890.35-38,487.62-15,954.80

Finding the Fourth Proportional to 27,890.35, 38,487.62 and 15,954.80

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Solution

The fourth proportional to 27,890.35, 38,487.62 and 15,954.80 is: 22,017.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,890.35 : 38,487.62 = 15,954.80 : x
  2. Step 2: Convert to fraction form
    27,890.35/38,487.62 = 15,954.80/x
  3. Step 3: Cross multiply
    27,890.35x = 38,487.62 × 15,954.80
  4. Step 4: Simplify right side
    27,890.35x = 614,062,127.02
  5. Step 5: Solve for x
    x = 614,062,127.02/27,890.35
  6. Step 6: Final answer
    x = 22,017.01

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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.