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Finding the Fourth Proportional to 30,801.63, 46,202.43 and 7,428.06

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Solution

The fourth proportional to 30,801.63, 46,202.43 and 7,428.06 is: 11,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,801.63 : 46,202.43 = 7,428.06 : x
  2. Step 2: Convert to fraction form
    30,801.63/46,202.43 = 7,428.06/x
  3. Step 3: Cross multiply
    30,801.63x = 46,202.43 × 7,428.06
  4. Step 4: Simplify right side
    30,801.63x = 343,194,422.19
  5. Step 5: Solve for x
    x = 343,194,422.19/30,801.63
  6. Step 6: Final answer
    x = 11,142.09

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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.