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Finding the Fourth Proportional to 30,607.03, 45,812.12 and 15,795.78

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Solution

The fourth proportional to 30,607.03, 45,812.12 and 15,795.78 is: 23,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.03 : 45,812.12 = 15,795.78 : x
  2. Step 2: Convert to fraction form
    30,607.03/45,812.12 = 15,795.78/x
  3. Step 3: Cross multiply
    30,607.03x = 45,812.12 × 15,795.78
  4. Step 4: Simplify right side
    30,607.03x = 723,638,168.85
  5. Step 5: Solve for x
    x = 723,638,168.85/30,607.03
  6. Step 6: Final answer
    x = 23,642.87

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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.