Home / 18,895.20-26,111.34-14,171.28

Finding the Fourth Proportional to 18,895.20, 26,111.34 and 14,171.28

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Solution

The fourth proportional to 18,895.20, 26,111.34 and 14,171.28 is: 19,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.20 : 26,111.34 = 14,171.28 : x
  2. Step 2: Convert to fraction form
    18,895.20/26,111.34 = 14,171.28/x
  3. Step 3: Cross multiply
    18,895.20x = 26,111.34 × 14,171.28
  4. Step 4: Simplify right side
    18,895.20x = 370,031,110.32
  5. Step 5: Solve for x
    x = 370,031,110.32/18,895.20
  6. Step 6: Final answer
    x = 19,583.34

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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.