Home / 19,515.80-29,252.71-8,427.71

Finding the Fourth Proportional to 19,515.80, 29,252.71 and 8,427.71

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Solution

The fourth proportional to 19,515.80, 29,252.71 and 8,427.71 is: 12,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.80 : 29,252.71 = 8,427.71 : x
  2. Step 2: Convert to fraction form
    19,515.80/29,252.71 = 8,427.71/x
  3. Step 3: Cross multiply
    19,515.80x = 29,252.71 × 8,427.71
  4. Step 4: Simplify right side
    19,515.80x = 246,533,356.59
  5. Step 5: Solve for x
    x = 246,533,356.59/19,515.80
  6. Step 6: Final answer
    x = 12,632.50

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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.