Home / 19,800.21-29,694.18-7,148.31

Finding the Fourth Proportional to 19,800.21, 29,694.18 and 7,148.31

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Solution

The fourth proportional to 19,800.21, 29,694.18 and 7,148.31 is: 10,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.21 : 29,694.18 = 7,148.31 : x
  2. Step 2: Convert to fraction form
    19,800.21/29,694.18 = 7,148.31/x
  3. Step 3: Cross multiply
    19,800.21x = 29,694.18 × 7,148.31
  4. Step 4: Simplify right side
    19,800.21x = 212,263,203.84
  5. Step 5: Solve for x
    x = 212,263,203.84/19,800.21
  6. Step 6: Final answer
    x = 10,720.25

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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.