Home / 27,996.57-38,635.26-15,421.32

Finding the Fourth Proportional to 27,996.57, 38,635.26 and 15,421.32

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Solution

The fourth proportional to 27,996.57, 38,635.26 and 15,421.32 is: 21,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,996.57 : 38,635.26 = 15,421.32 : x
  2. Step 2: Convert to fraction form
    27,996.57/38,635.26 = 15,421.32/x
  3. Step 3: Cross multiply
    27,996.57x = 38,635.26 × 15,421.32
  4. Step 4: Simplify right side
    27,996.57x = 595,806,707.74
  5. Step 5: Solve for x
    x = 595,806,707.74/27,996.57
  6. Step 6: Final answer
    x = 21,281.42

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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.