Home / 19,246.90-28,899.15-13,429.30

Finding the Fourth Proportional to 19,246.90, 28,899.15 and 13,429.30

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Solution

The fourth proportional to 19,246.90, 28,899.15 and 13,429.30 is: 20,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.90 : 28,899.15 = 13,429.30 : x
  2. Step 2: Convert to fraction form
    19,246.90/28,899.15 = 13,429.30/x
  3. Step 3: Cross multiply
    19,246.90x = 28,899.15 × 13,429.30
  4. Step 4: Simplify right side
    19,246.90x = 388,095,355.10
  5. Step 5: Solve for x
    x = 388,095,355.10/19,246.90
  6. Step 6: Final answer
    x = 20,164.04

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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.