Home / 29,583.84-40,815.24-18,979.20

Finding the Fourth Proportional to 29,583.84, 40,815.24 and 18,979.20

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Solution

The fourth proportional to 29,583.84, 40,815.24 and 18,979.20 is: 26,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,583.84 : 40,815.24 = 18,979.20 : x
  2. Step 2: Convert to fraction form
    29,583.84/40,815.24 = 18,979.20/x
  3. Step 3: Cross multiply
    29,583.84x = 40,815.24 × 18,979.20
  4. Step 4: Simplify right side
    29,583.84x = 774,640,603.01
  5. Step 5: Solve for x
    x = 774,640,603.01/29,583.84
  6. Step 6: Final answer
    x = 26,184.59

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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.