Home / 19,356.89-29,015.73-13,117.54

Finding the Fourth Proportional to 19,356.89, 29,015.73 and 13,117.54

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Solution

The fourth proportional to 19,356.89, 29,015.73 and 13,117.54 is: 19,663.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.89 : 29,015.73 = 13,117.54 : x
  2. Step 2: Convert to fraction form
    19,356.89/29,015.73 = 13,117.54/x
  3. Step 3: Cross multiply
    19,356.89x = 29,015.73 × 13,117.54
  4. Step 4: Simplify right side
    19,356.89x = 380,614,998.90
  5. Step 5: Solve for x
    x = 380,614,998.90/19,356.89
  6. Step 6: Final answer
    x = 19,663.02

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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.