Home / 19,089.29-28,610.39-13,842.31

Finding the Fourth Proportional to 19,089.29, 28,610.39 and 13,842.31

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Solution

The fourth proportional to 19,089.29, 28,610.39 and 13,842.31 is: 20,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.29 : 28,610.39 = 13,842.31 : x
  2. Step 2: Convert to fraction form
    19,089.29/28,610.39 = 13,842.31/x
  3. Step 3: Cross multiply
    19,089.29x = 28,610.39 × 13,842.31
  4. Step 4: Simplify right side
    19,089.29x = 396,033,887.60
  5. Step 5: Solve for x
    x = 396,033,887.60/19,089.29
  6. Step 6: Final answer
    x = 20,746.39

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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.