Home / 19,427.72-29,113.77-8,331.44

Finding the Fourth Proportional to 19,427.72, 29,113.77 and 8,331.44

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Solution

The fourth proportional to 19,427.72, 29,113.77 and 8,331.44 is: 12,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.72 : 29,113.77 = 8,331.44 : x
  2. Step 2: Convert to fraction form
    19,427.72/29,113.77 = 8,331.44/x
  3. Step 3: Cross multiply
    19,427.72x = 29,113.77 × 8,331.44
  4. Step 4: Simplify right side
    19,427.72x = 242,559,627.93
  5. Step 5: Solve for x
    x = 242,559,627.93/19,427.72
  6. Step 6: Final answer
    x = 12,485.23

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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.