Home / 19,515.21-29,246.60-10,135.71

Finding the Fourth Proportional to 19,515.21, 29,246.60 and 10,135.71

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Solution

The fourth proportional to 19,515.21, 29,246.60 and 10,135.71 is: 15,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.21 : 29,246.60 = 10,135.71 : x
  2. Step 2: Convert to fraction form
    19,515.21/29,246.60 = 10,135.71/x
  3. Step 3: Cross multiply
    19,515.21x = 29,246.60 × 10,135.71
  4. Step 4: Simplify right side
    19,515.21x = 296,435,005.41
  5. Step 5: Solve for x
    x = 296,435,005.41/19,515.21
  6. Step 6: Final answer
    x = 15,189.95

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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.