Home / 19,455.20-29,159.91-11,140.95

Finding the Fourth Proportional to 19,455.20, 29,159.91 and 11,140.95

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Solution

The fourth proportional to 19,455.20, 29,159.91 and 11,140.95 is: 16,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.20 : 29,159.91 = 11,140.95 : x
  2. Step 2: Convert to fraction form
    19,455.20/29,159.91 = 11,140.95/x
  3. Step 3: Cross multiply
    19,455.20x = 29,159.91 × 11,140.95
  4. Step 4: Simplify right side
    19,455.20x = 324,869,099.31
  5. Step 5: Solve for x
    x = 324,869,099.31/19,455.20
  6. Step 6: Final answer
    x = 16,698.32

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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.