Home / 21,438.24-32,157.37-8,951.46

Finding the Fourth Proportional to 21,438.24, 32,157.37 and 8,951.46

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Solution

The fourth proportional to 21,438.24, 32,157.37 and 8,951.46 is: 13,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.24 : 32,157.37 = 8,951.46 : x
  2. Step 2: Convert to fraction form
    21,438.24/32,157.37 = 8,951.46/x
  3. Step 3: Cross multiply
    21,438.24x = 32,157.37 × 8,951.46
  4. Step 4: Simplify right side
    21,438.24x = 287,855,250.47
  5. Step 5: Solve for x
    x = 287,855,250.47/21,438.24
  6. Step 6: Final answer
    x = 13,427.19

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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.