Home / 19,689.36-29,501.18-13,835.49

Finding the Fourth Proportional to 19,689.36, 29,501.18 and 13,835.49

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Solution

The fourth proportional to 19,689.36, 29,501.18 and 13,835.49 is: 20,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.36 : 29,501.18 = 13,835.49 : x
  2. Step 2: Convert to fraction form
    19,689.36/29,501.18 = 13,835.49/x
  3. Step 3: Cross multiply
    19,689.36x = 29,501.18 × 13,835.49
  4. Step 4: Simplify right side
    19,689.36x = 408,163,211.70
  5. Step 5: Solve for x
    x = 408,163,211.70/19,689.36
  6. Step 6: Final answer
    x = 20,730.14

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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.