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Finding the Fourth Proportional to 30,365.69, 45,484.74 and 19,266.66

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Solution

The fourth proportional to 30,365.69, 45,484.74 and 19,266.66 is: 28,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.69 : 45,484.74 = 19,266.66 : x
  2. Step 2: Convert to fraction form
    30,365.69/45,484.74 = 19,266.66/x
  3. Step 3: Cross multiply
    30,365.69x = 45,484.74 × 19,266.66
  4. Step 4: Simplify right side
    30,365.69x = 876,339,020.77
  5. Step 5: Solve for x
    x = 876,339,020.77/30,365.69
  6. Step 6: Final answer
    x = 28,859.52

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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.