Home / 19,458.45-29,140.85-11,113.16

Finding the Fourth Proportional to 19,458.45, 29,140.85 and 11,113.16

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Solution

The fourth proportional to 19,458.45, 29,140.85 and 11,113.16 is: 16,642.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.45 : 29,140.85 = 11,113.16 : x
  2. Step 2: Convert to fraction form
    19,458.45/29,140.85 = 11,113.16/x
  3. Step 3: Cross multiply
    19,458.45x = 29,140.85 × 11,113.16
  4. Step 4: Simplify right side
    19,458.45x = 323,846,727.32
  5. Step 5: Solve for x
    x = 323,846,727.32/19,458.45
  6. Step 6: Final answer
    x = 16,642.99

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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.