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Finding the Fourth Proportional to 30,502.80, 45,746.73 and 8,316.27

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Solution

The fourth proportional to 30,502.80, 45,746.73 and 8,316.27 is: 12,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,502.80 : 45,746.73 = 8,316.27 : x
  2. Step 2: Convert to fraction form
    30,502.80/45,746.73 = 8,316.27/x
  3. Step 3: Cross multiply
    30,502.80x = 45,746.73 × 8,316.27
  4. Step 4: Simplify right side
    30,502.80x = 380,442,158.30
  5. Step 5: Solve for x
    x = 380,442,158.30/30,502.80
  6. Step 6: Final answer
    x = 12,472.37

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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.