Home / 30,101.13-45,153.32-12,553.29

Finding the Fourth Proportional to 30,101.13, 45,153.32 and 12,553.29

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Solution

The fourth proportional to 30,101.13, 45,153.32 and 12,553.29 is: 18,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.13 : 45,153.32 = 12,553.29 : x
  2. Step 2: Convert to fraction form
    30,101.13/45,153.32 = 12,553.29/x
  3. Step 3: Cross multiply
    30,101.13x = 45,153.32 × 12,553.29
  4. Step 4: Simplify right side
    30,101.13x = 566,822,657.66
  5. Step 5: Solve for x
    x = 566,822,657.66/30,101.13
  6. Step 6: Final answer
    x = 18,830.61

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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.