Home / 19,640.72-29,461.80-8,532.20

Finding the Fourth Proportional to 19,640.72, 29,461.80 and 8,532.20

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Solution

The fourth proportional to 19,640.72, 29,461.80 and 8,532.20 is: 12,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.72 : 29,461.80 = 8,532.20 : x
  2. Step 2: Convert to fraction form
    19,640.72/29,461.80 = 8,532.20/x
  3. Step 3: Cross multiply
    19,640.72x = 29,461.80 × 8,532.20
  4. Step 4: Simplify right side
    19,640.72x = 251,373,969.96
  5. Step 5: Solve for x
    x = 251,373,969.96/19,640.72
  6. Step 6: Final answer
    x = 12,798.61

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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.