Home / 19,068.80-26,299.40-13,422.29

Finding the Fourth Proportional to 19,068.80, 26,299.40 and 13,422.29

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Solution

The fourth proportional to 19,068.80, 26,299.40 and 13,422.29 is: 18,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068.80 : 26,299.40 = 13,422.29 : x
  2. Step 2: Convert to fraction form
    19,068.80/26,299.40 = 13,422.29/x
  3. Step 3: Cross multiply
    19,068.80x = 26,299.40 × 13,422.29
  4. Step 4: Simplify right side
    19,068.80x = 352,997,975.02
  5. Step 5: Solve for x
    x = 352,997,975.02/19,068.80
  6. Step 6: Final answer
    x = 18,511.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.