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Finding the Fourth Proportional to 30,488.99, 45,737.73 and 9,430.73

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Solution

The fourth proportional to 30,488.99, 45,737.73 and 9,430.73 is: 14,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.99 : 45,737.73 = 9,430.73 : x
  2. Step 2: Convert to fraction form
    30,488.99/45,737.73 = 9,430.73/x
  3. Step 3: Cross multiply
    30,488.99x = 45,737.73 × 9,430.73
  4. Step 4: Simplify right side
    30,488.99x = 431,340,182.44
  5. Step 5: Solve for x
    x = 431,340,182.44/30,488.99
  6. Step 6: Final answer
    x = 14,147.41

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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.