Home / 20,237.40-30,357.90-5,445.98

Finding the Fourth Proportional to 20,237.40, 30,357.90 and 5,445.98

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Solution

The fourth proportional to 20,237.40, 30,357.90 and 5,445.98 is: 8,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.40 : 30,357.90 = 5,445.98 : x
  2. Step 2: Convert to fraction form
    20,237.40/30,357.90 = 5,445.98/x
  3. Step 3: Cross multiply
    20,237.40x = 30,357.90 × 5,445.98
  4. Step 4: Simplify right side
    20,237.40x = 165,328,516.24
  5. Step 5: Solve for x
    x = 165,328,516.24/20,237.40
  6. Step 6: Final answer
    x = 8,169.45

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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.