Home / 20,729.23-28,583.75-14,003.18

Finding the Fourth Proportional to 20,729.23, 28,583.75 and 14,003.18

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Solution

The fourth proportional to 20,729.23, 28,583.75 and 14,003.18 is: 19,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.23 : 28,583.75 = 14,003.18 : x
  2. Step 2: Convert to fraction form
    20,729.23/28,583.75 = 14,003.18/x
  3. Step 3: Cross multiply
    20,729.23x = 28,583.75 × 14,003.18
  4. Step 4: Simplify right side
    20,729.23x = 400,263,326.31
  5. Step 5: Solve for x
    x = 400,263,326.31/20,729.23
  6. Step 6: Final answer
    x = 19,309.13

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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.