Home / 27,086.81-37,380.90-14,987.09

Finding the Fourth Proportional to 27,086.81, 37,380.90 and 14,987.09

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Solution

The fourth proportional to 27,086.81, 37,380.90 and 14,987.09 is: 20,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,086.81 : 37,380.90 = 14,987.09 : x
  2. Step 2: Convert to fraction form
    27,086.81/37,380.90 = 14,987.09/x
  3. Step 3: Cross multiply
    27,086.81x = 37,380.90 × 14,987.09
  4. Step 4: Simplify right side
    27,086.81x = 560,230,931.10
  5. Step 5: Solve for x
    x = 560,230,931.10/27,086.81
  6. Step 6: Final answer
    x = 20,682.80

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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.