Home / 30,721.82-46,082.72-8,535.21

Finding the Fourth Proportional to 30,721.82, 46,082.72 and 8,535.21

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Solution

The fourth proportional to 30,721.82, 46,082.72 and 8,535.21 is: 12,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.82 : 46,082.72 = 8,535.21 : x
  2. Step 2: Convert to fraction form
    30,721.82/46,082.72 = 8,535.21/x
  3. Step 3: Cross multiply
    30,721.82x = 46,082.72 × 8,535.21
  4. Step 4: Simplify right side
    30,721.82x = 393,325,541.10
  5. Step 5: Solve for x
    x = 393,325,541.10/30,721.82
  6. Step 6: Final answer
    x = 12,802.81

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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.