Home / 19,435.09-29,128.63-10,069.72

Finding the Fourth Proportional to 19,435.09, 29,128.63 and 10,069.72

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Solution

The fourth proportional to 19,435.09, 29,128.63 and 10,069.72 is: 15,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,435.09 : 29,128.63 = 10,069.72 : x
  2. Step 2: Convert to fraction form
    19,435.09/29,128.63 = 10,069.72/x
  3. Step 3: Cross multiply
    19,435.09x = 29,128.63 × 10,069.72
  4. Step 4: Simplify right side
    19,435.09x = 293,317,068.97
  5. Step 5: Solve for x
    x = 293,317,068.97/19,435.09
  6. Step 6: Final answer
    x = 15,092.14

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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.