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Finding the Fourth Proportional to 30,010.16, 44,934.24 and 20,128.16

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Solution

The fourth proportional to 30,010.16, 44,934.24 and 20,128.16 is: 30,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.16 : 44,934.24 = 20,128.16 : x
  2. Step 2: Convert to fraction form
    30,010.16/44,934.24 = 20,128.16/x
  3. Step 3: Cross multiply
    30,010.16x = 44,934.24 × 20,128.16
  4. Step 4: Simplify right side
    30,010.16x = 904,443,572.20
  5. Step 5: Solve for x
    x = 904,443,572.20/30,010.16
  6. Step 6: Final answer
    x = 30,137.91

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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.