Home / 20,031.48-30,077.80-16,951.86

Finding the Fourth Proportional to 20,031.48, 30,077.80 and 16,951.86

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Solution

The fourth proportional to 20,031.48, 30,077.80 and 16,951.86 is: 25,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.48 : 30,077.80 = 16,951.86 : x
  2. Step 2: Convert to fraction form
    20,031.48/30,077.80 = 16,951.86/x
  3. Step 3: Cross multiply
    20,031.48x = 30,077.80 × 16,951.86
  4. Step 4: Simplify right side
    20,031.48x = 509,874,612.33
  5. Step 5: Solve for x
    x = 509,874,612.33/20,031.48
  6. Step 6: Final answer
    x = 25,453.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.