Home / 18,601.08-28,029.50-15,386.19

Finding the Fourth Proportional to 18,601.08, 28,029.50 and 15,386.19

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Solution

The fourth proportional to 18,601.08, 28,029.50 and 15,386.19 is: 23,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.08 : 28,029.50 = 15,386.19 : x
  2. Step 2: Convert to fraction form
    18,601.08/28,029.50 = 15,386.19/x
  3. Step 3: Cross multiply
    18,601.08x = 28,029.50 × 15,386.19
  4. Step 4: Simplify right side
    18,601.08x = 431,267,135.67
  5. Step 5: Solve for x
    x = 431,267,135.67/18,601.08
  6. Step 6: Final answer
    x = 23,185.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.