Home / 19,629.86-27,088.40-11,132.56

Finding the Fourth Proportional to 19,629.86, 27,088.40 and 11,132.56

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Solution

The fourth proportional to 19,629.86, 27,088.40 and 11,132.56 is: 15,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.86 : 27,088.40 = 11,132.56 : x
  2. Step 2: Convert to fraction form
    19,629.86/27,088.40 = 11,132.56/x
  3. Step 3: Cross multiply
    19,629.86x = 27,088.40 × 11,132.56
  4. Step 4: Simplify right side
    19,629.86x = 301,563,238.30
  5. Step 5: Solve for x
    x = 301,563,238.30/19,629.86
  6. Step 6: Final answer
    x = 15,362.48

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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.