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Finding the Fourth Proportional to 18,146.68, 25,024 and 17,088.40

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Solution

The fourth proportional to 18,146.68, 25,024 and 17,088.40 is: 23,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.68 : 25,024 = 17,088.40 : x
  2. Step 2: Convert to fraction form
    18,146.68/25,024 = 17,088.40/x
  3. Step 3: Cross multiply
    18,146.68x = 25,024 × 17,088.40
  4. Step 4: Simplify right side
    18,146.68x = 427,620,121.60
  5. Step 5: Solve for x
    x = 427,620,121.60/18,146.68
  6. Step 6: Final answer
    x = 23,564.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.