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Finding the Fourth Proportional to 30,210, 45,324.63 and 12,675.12

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Solution

The fourth proportional to 30,210, 45,324.63 and 12,675.12 is: 19,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210 : 45,324.63 = 12,675.12 : x
  2. Step 2: Convert to fraction form
    30,210/45,324.63 = 12,675.12/x
  3. Step 3: Cross multiply
    30,210x = 45,324.63 × 12,675.12
  4. Step 4: Simplify right side
    30,210x = 574,495,124.21
  5. Step 5: Solve for x
    x = 574,495,124.21/30,210
  6. Step 6: Final answer
    x = 19,016.72

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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.