Home / 27,485.42-37,930.56-16,869.02

Finding the Fourth Proportional to 27,485.42, 37,930.56 and 16,869.02

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Solution

The fourth proportional to 27,485.42, 37,930.56 and 16,869.02 is: 23,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,485.42 : 37,930.56 = 16,869.02 : x
  2. Step 2: Convert to fraction form
    27,485.42/37,930.56 = 16,869.02/x
  3. Step 3: Cross multiply
    27,485.42x = 37,930.56 × 16,869.02
  4. Step 4: Simplify right side
    27,485.42x = 639,851,375.25
  5. Step 5: Solve for x
    x = 639,851,375.25/27,485.42
  6. Step 6: Final answer
    x = 23,279.67

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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.