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Finding the Fourth Proportional to 30,291.42, 45,446.42 and 15,510.72

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Solution

The fourth proportional to 30,291.42, 45,446.42 and 15,510.72 is: 23,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.42 : 45,446.42 = 15,510.72 : x
  2. Step 2: Convert to fraction form
    30,291.42/45,446.42 = 15,510.72/x
  3. Step 3: Cross multiply
    30,291.42x = 45,446.42 × 15,510.72
  4. Step 4: Simplify right side
    30,291.42x = 704,906,695.62
  5. Step 5: Solve for x
    x = 704,906,695.62/30,291.42
  6. Step 6: Final answer
    x = 23,270.84

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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.