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Finding the Fourth Proportional to 30,784.99, 46,156.82 and 15,801.21

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Solution

The fourth proportional to 30,784.99, 46,156.82 and 15,801.21 is: 23,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,784.99 : 46,156.82 = 15,801.21 : x
  2. Step 2: Convert to fraction form
    30,784.99/46,156.82 = 15,801.21/x
  3. Step 3: Cross multiply
    30,784.99x = 46,156.82 × 15,801.21
  4. Step 4: Simplify right side
    30,784.99x = 729,333,605.75
  5. Step 5: Solve for x
    x = 729,333,605.75/30,784.99
  6. Step 6: Final answer
    x = 23,691.21

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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.