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Finding the Fourth Proportional to 25,661.63, 38,460.83 and 18,225.83

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Solution

The fourth proportional to 25,661.63, 38,460.83 and 18,225.83 is: 27,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,661.63 : 38,460.83 = 18,225.83 : x
  2. Step 2: Convert to fraction form
    25,661.63/38,460.83 = 18,225.83/x
  3. Step 3: Cross multiply
    25,661.63x = 38,460.83 × 18,225.83
  4. Step 4: Simplify right side
    25,661.63x = 700,980,265.81
  5. Step 5: Solve for x
    x = 700,980,265.81/25,661.63
  6. Step 6: Final answer
    x = 27,316.29

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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.