Home / 19,425.32-29,110.38-8,869.40

Finding the Fourth Proportional to 19,425.32, 29,110.38 and 8,869.40

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Solution

The fourth proportional to 19,425.32, 29,110.38 and 8,869.40 is: 13,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.32 : 29,110.38 = 8,869.40 : x
  2. Step 2: Convert to fraction form
    19,425.32/29,110.38 = 8,869.40/x
  3. Step 3: Cross multiply
    19,425.32x = 29,110.38 × 8,869.40
  4. Step 4: Simplify right side
    19,425.32x = 258,191,604.37
  5. Step 5: Solve for x
    x = 258,191,604.37/19,425.32
  6. Step 6: Final answer
    x = 13,291.50

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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.