Home / 19,909.14-29,810.34-10,529.70

Finding the Fourth Proportional to 19,909.14, 29,810.34 and 10,529.70

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Solution

The fourth proportional to 19,909.14, 29,810.34 and 10,529.70 is: 15,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.14 : 29,810.34 = 10,529.70 : x
  2. Step 2: Convert to fraction form
    19,909.14/29,810.34 = 10,529.70/x
  3. Step 3: Cross multiply
    19,909.14x = 29,810.34 × 10,529.70
  4. Step 4: Simplify right side
    19,909.14x = 313,893,937.10
  5. Step 5: Solve for x
    x = 313,893,937.10/19,909.14
  6. Step 6: Final answer
    x = 15,766.32

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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.