Home / 27,627.71-38,125.21-16,890.57

Finding the Fourth Proportional to 27,627.71, 38,125.21 and 16,890.57

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Solution

The fourth proportional to 27,627.71, 38,125.21 and 16,890.57 is: 23,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,627.71 : 38,125.21 = 16,890.57 : x
  2. Step 2: Convert to fraction form
    27,627.71/38,125.21 = 16,890.57/x
  3. Step 3: Cross multiply
    27,627.71x = 38,125.21 × 16,890.57
  4. Step 4: Simplify right side
    27,627.71x = 643,956,528.27
  5. Step 5: Solve for x
    x = 643,956,528.27/27,627.71
  6. Step 6: Final answer
    x = 23,308.36

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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.