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Finding the Fourth Proportional to 30,572.40, 45,790.80 and 23,500.28

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Solution

The fourth proportional to 30,572.40, 45,790.80 and 23,500.28 is: 35,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.40 : 45,790.80 = 23,500.28 : x
  2. Step 2: Convert to fraction form
    30,572.40/45,790.80 = 23,500.28/x
  3. Step 3: Cross multiply
    30,572.40x = 45,790.80 × 23,500.28
  4. Step 4: Simplify right side
    30,572.40x = 1,076,096,621.42
  5. Step 5: Solve for x
    x = 1,076,096,621.42/30,572.40
  6. Step 6: Final answer
    x = 35,198.30

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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.