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Finding the Fourth Proportional to 30,130.40, 45,244.20 and 22,743.20

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Solution

The fourth proportional to 30,130.40, 45,244.20 and 22,743.20 is: 34,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.40 : 45,244.20 = 22,743.20 : x
  2. Step 2: Convert to fraction form
    30,130.40/45,244.20 = 22,743.20/x
  3. Step 3: Cross multiply
    30,130.40x = 45,244.20 × 22,743.20
  4. Step 4: Simplify right side
    30,130.40x = 1,028,997,889.44
  5. Step 5: Solve for x
    x = 1,028,997,889.44/30,130.40
  6. Step 6: Final answer
    x = 34,151.48

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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.