Home / 30,186.93-45,221.50-19,767.09

Finding the Fourth Proportional to 30,186.93, 45,221.50 and 19,767.09

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Solution

The fourth proportional to 30,186.93, 45,221.50 and 19,767.09 is: 29,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.93 : 45,221.50 = 19,767.09 : x
  2. Step 2: Convert to fraction form
    30,186.93/45,221.50 = 19,767.09/x
  3. Step 3: Cross multiply
    30,186.93x = 45,221.50 × 19,767.09
  4. Step 4: Simplify right side
    30,186.93x = 893,897,543.53
  5. Step 5: Solve for x
    x = 893,897,543.53/30,186.93
  6. Step 6: Final answer
    x = 29,612.07

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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.