Home / 19,772.21-29,660.90-7,300.98

Finding the Fourth Proportional to 19,772.21, 29,660.90 and 7,300.98

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Solution

The fourth proportional to 19,772.21, 29,660.90 and 7,300.98 is: 10,952.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.21 : 29,660.90 = 7,300.98 : x
  2. Step 2: Convert to fraction form
    19,772.21/29,660.90 = 7,300.98/x
  3. Step 3: Cross multiply
    19,772.21x = 29,660.90 × 7,300.98
  4. Step 4: Simplify right side
    19,772.21x = 216,553,601.18
  5. Step 5: Solve for x
    x = 216,553,601.18/19,772.21
  6. Step 6: Final answer
    x = 10,952.43

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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.