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Finding the Fourth Proportional to 30,518.54, 45,775.20 and 9,458.10

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Solution

The fourth proportional to 30,518.54, 45,775.20 and 9,458.10 is: 14,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.54 : 45,775.20 = 9,458.10 : x
  2. Step 2: Convert to fraction form
    30,518.54/45,775.20 = 9,458.10/x
  3. Step 3: Cross multiply
    30,518.54x = 45,775.20 × 9,458.10
  4. Step 4: Simplify right side
    30,518.54x = 432,946,190.24
  5. Step 5: Solve for x
    x = 432,946,190.24/30,518.54
  6. Step 6: Final answer
    x = 14,186.34

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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.