Home / 19,460.45-29,143.84-11,115.16

Finding the Fourth Proportional to 19,460.45, 29,143.84 and 11,115.16

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Solution

The fourth proportional to 19,460.45, 29,143.84 and 11,115.16 is: 16,645.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,460.45 : 29,143.84 = 11,115.16 : x
  2. Step 2: Convert to fraction form
    19,460.45/29,143.84 = 11,115.16/x
  3. Step 3: Cross multiply
    19,460.45x = 29,143.84 × 11,115.16
  4. Step 4: Simplify right side
    19,460.45x = 323,938,444.61
  5. Step 5: Solve for x
    x = 323,938,444.61/19,460.45
  6. Step 6: Final answer
    x = 16,645.99

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1.5x scale

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.