Home / 19,541.25-26,989.20-13,242.69

Finding the Fourth Proportional to 19,541.25, 26,989.20 and 13,242.69

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Solution

The fourth proportional to 19,541.25, 26,989.20 and 13,242.69 is: 18,290.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,541.25 : 26,989.20 = 13,242.69 : x
  2. Step 2: Convert to fraction form
    19,541.25/26,989.20 = 13,242.69/x
  3. Step 3: Cross multiply
    19,541.25x = 26,989.20 × 13,242.69
  4. Step 4: Simplify right side
    19,541.25x = 357,409,608.95
  5. Step 5: Solve for x
    x = 357,409,608.95/19,541.25
  6. Step 6: Final answer
    x = 18,290.01

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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.