Home / 19,720.31-29,580.46-8,624.03

Finding the Fourth Proportional to 19,720.31, 29,580.46 and 8,624.03

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Solution

The fourth proportional to 19,720.31, 29,580.46 and 8,624.03 is: 12,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.31 : 29,580.46 = 8,624.03 : x
  2. Step 2: Convert to fraction form
    19,720.31/29,580.46 = 8,624.03/x
  3. Step 3: Cross multiply
    19,720.31x = 29,580.46 × 8,624.03
  4. Step 4: Simplify right side
    19,720.31x = 255,102,604.99
  5. Step 5: Solve for x
    x = 255,102,604.99/19,720.31
  6. Step 6: Final answer
    x = 12,936.04

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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.