Home / 19,312.92-28,988.82-14,103

Finding the Fourth Proportional to 19,312.92, 28,988.82 and 14,103

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Solution

The fourth proportional to 19,312.92, 28,988.82 and 14,103 is: 21,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.92 : 28,988.82 = 14,103 : x
  2. Step 2: Convert to fraction form
    19,312.92/28,988.82 = 14,103/x
  3. Step 3: Cross multiply
    19,312.92x = 28,988.82 × 14,103
  4. Step 4: Simplify right side
    19,312.92x = 408,829,328.46
  5. Step 5: Solve for x
    x = 408,829,328.46/19,312.92
  6. Step 6: Final answer
    x = 21,168.70

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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.