Home / 18,640.08-28,017.72-17,718.48

Finding the Fourth Proportional to 18,640.08, 28,017.72 and 17,718.48

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Solution

The fourth proportional to 18,640.08, 28,017.72 and 17,718.48 is: 26,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.08 : 28,017.72 = 17,718.48 : x
  2. Step 2: Convert to fraction form
    18,640.08/28,017.72 = 17,718.48/x
  3. Step 3: Cross multiply
    18,640.08x = 28,017.72 × 17,718.48
  4. Step 4: Simplify right side
    18,640.08x = 496,431,411.47
  5. Step 5: Solve for x
    x = 496,431,411.47/18,640.08
  6. Step 6: Final answer
    x = 26,632.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.