Home / 19,815.50-29,702.30-7,327.51

Finding the Fourth Proportional to 19,815.50, 29,702.30 and 7,327.51

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Solution

The fourth proportional to 19,815.50, 29,702.30 and 7,327.51 is: 10,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.50 : 29,702.30 = 7,327.51 : x
  2. Step 2: Convert to fraction form
    19,815.50/29,702.30 = 7,327.51/x
  3. Step 3: Cross multiply
    19,815.50x = 29,702.30 × 7,327.51
  4. Step 4: Simplify right side
    19,815.50x = 217,643,900.27
  5. Step 5: Solve for x
    x = 217,643,900.27/19,815.50
  6. Step 6: Final answer
    x = 10,983.52

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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.