Home / 18,220.21-25,159.73-14,012.97

Finding the Fourth Proportional to 18,220.21, 25,159.73 and 14,012.97

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Solution

The fourth proportional to 18,220.21, 25,159.73 and 14,012.97 is: 19,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.21 : 25,159.73 = 14,012.97 : x
  2. Step 2: Convert to fraction form
    18,220.21/25,159.73 = 14,012.97/x
  3. Step 3: Cross multiply
    18,220.21x = 25,159.73 × 14,012.97
  4. Step 4: Simplify right side
    18,220.21x = 352,562,541.70
  5. Step 5: Solve for x
    x = 352,562,541.70/18,220.21
  6. Step 6: Final answer
    x = 19,350.08

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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.