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Finding the Fourth Proportional to 18,039.16, 26,928.59 and 17,230.51

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Solution

The fourth proportional to 18,039.16, 26,928.59 and 17,230.51 is: 25,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.16 : 26,928.59 = 17,230.51 : x
  2. Step 2: Convert to fraction form
    18,039.16/26,928.59 = 17,230.51/x
  3. Step 3: Cross multiply
    18,039.16x = 26,928.59 × 17,230.51
  4. Step 4: Simplify right side
    18,039.16x = 463,993,339.28
  5. Step 5: Solve for x
    x = 463,993,339.28/18,039.16
  6. Step 6: Final answer
    x = 25,721.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.