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Finding the Fourth Proportional to 23,423, 35,079.28 and 20,328.24

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Solution

The fourth proportional to 23,423, 35,079.28 and 20,328.24 is: 30,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,423 : 35,079.28 = 20,328.24 : x
  2. Step 2: Convert to fraction form
    23,423/35,079.28 = 20,328.24/x
  3. Step 3: Cross multiply
    23,423x = 35,079.28 × 20,328.24
  4. Step 4: Simplify right side
    23,423x = 713,100,022.87
  5. Step 5: Solve for x
    x = 713,100,022.87/23,423
  6. Step 6: Final answer
    x = 30,444.44

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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.