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Finding the Fourth Proportional to 18,140.10, 25,344.30 and 18,140.10

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Solution

The fourth proportional to 18,140.10, 25,344.30 and 18,140.10 is: 25,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.10 : 25,344.30 = 18,140.10 : x
  2. Step 2: Convert to fraction form
    18,140.10/25,344.30 = 18,140.10/x
  3. Step 3: Cross multiply
    18,140.10x = 25,344.30 × 18,140.10
  4. Step 4: Simplify right side
    18,140.10x = 459,748,136.43
  5. Step 5: Solve for x
    x = 459,748,136.43/18,140.10
  6. Step 6: Final answer
    x = 25,344.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.