Home / 19,320.72-28,944.30-11,006.46

Finding the Fourth Proportional to 19,320.72, 28,944.30 and 11,006.46

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Solution

The fourth proportional to 19,320.72, 28,944.30 and 11,006.46 is: 16,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.72 : 28,944.30 = 11,006.46 : x
  2. Step 2: Convert to fraction form
    19,320.72/28,944.30 = 11,006.46/x
  3. Step 3: Cross multiply
    19,320.72x = 28,944.30 × 11,006.46
  4. Step 4: Simplify right side
    19,320.72x = 318,574,280.18
  5. Step 5: Solve for x
    x = 318,574,280.18/19,320.72
  6. Step 6: Final answer
    x = 16,488.74

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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.