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Finding the Fourth Proportional to 30,403.62, 45,605.43 and 9,625.50

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Solution

The fourth proportional to 30,403.62, 45,605.43 and 9,625.50 is: 14,438.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.62 : 45,605.43 = 9,625.50 : x
  2. Step 2: Convert to fraction form
    30,403.62/45,605.43 = 9,625.50/x
  3. Step 3: Cross multiply
    30,403.62x = 45,605.43 × 9,625.50
  4. Step 4: Simplify right side
    30,403.62x = 438,975,066.47
  5. Step 5: Solve for x
    x = 438,975,066.47/30,403.62
  6. Step 6: Final answer
    x = 14,438.25

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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.