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Finding the Fourth Proportional to 30,342.99, 45,508.01 and 9,561.63

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Solution

The fourth proportional to 30,342.99, 45,508.01 and 9,561.63 is: 14,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.99 : 45,508.01 = 9,561.63 : x
  2. Step 2: Convert to fraction form
    30,342.99/45,508.01 = 9,561.63/x
  3. Step 3: Cross multiply
    30,342.99x = 45,508.01 × 9,561.63
  4. Step 4: Simplify right side
    30,342.99x = 435,130,705.85
  5. Step 5: Solve for x
    x = 435,130,705.85/30,342.99
  6. Step 6: Final answer
    x = 14,340.40

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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.