Home / 18,271.24-25,189.86-14,276.68

Finding the Fourth Proportional to 18,271.24, 25,189.86 and 14,276.68

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Solution

The fourth proportional to 18,271.24, 25,189.86 and 14,276.68 is: 19,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.24 : 25,189.86 = 14,276.68 : x
  2. Step 2: Convert to fraction form
    18,271.24/25,189.86 = 14,276.68/x
  3. Step 3: Cross multiply
    18,271.24x = 25,189.86 × 14,276.68
  4. Step 4: Simplify right side
    18,271.24x = 359,627,570.46
  5. Step 5: Solve for x
    x = 359,627,570.46/18,271.24
  6. Step 6: Final answer
    x = 19,682.71

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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.