Home / 18,028.65-24,871.80-11,309.70

Finding the Fourth Proportional to 18,028.65, 24,871.80 and 11,309.70

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Solution

The fourth proportional to 18,028.65, 24,871.80 and 11,309.70 is: 15,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.65 : 24,871.80 = 11,309.70 : x
  2. Step 2: Convert to fraction form
    18,028.65/24,871.80 = 11,309.70/x
  3. Step 3: Cross multiply
    18,028.65x = 24,871.80 × 11,309.70
  4. Step 4: Simplify right side
    18,028.65x = 281,292,596.46
  5. Step 5: Solve for x
    x = 281,292,596.46/18,028.65
  6. Step 6: Final answer
    x = 15,602.53

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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.