Home / 19,622.20-29,433.30-18,009.40

Finding the Fourth Proportional to 19,622.20, 29,433.30 and 18,009.40

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Solution

The fourth proportional to 19,622.20, 29,433.30 and 18,009.40 is: 27,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,622.20 : 29,433.30 = 18,009.40 : x
  2. Step 2: Convert to fraction form
    19,622.20/29,433.30 = 18,009.40/x
  3. Step 3: Cross multiply
    19,622.20x = 29,433.30 × 18,009.40
  4. Step 4: Simplify right side
    19,622.20x = 530,076,073.02
  5. Step 5: Solve for x
    x = 530,076,073.02/19,622.20
  6. Step 6: Final answer
    x = 27,014.10

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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.