Home / 18,421.56-25,415.28-14,173.92

Finding the Fourth Proportional to 18,421.56, 25,415.28 and 14,173.92

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Solution

The fourth proportional to 18,421.56, 25,415.28 and 14,173.92 is: 19,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.56 : 25,415.28 = 14,173.92 : x
  2. Step 2: Convert to fraction form
    18,421.56/25,415.28 = 14,173.92/x
  3. Step 3: Cross multiply
    18,421.56x = 25,415.28 × 14,173.92
  4. Step 4: Simplify right side
    18,421.56x = 360,234,145.50
  5. Step 5: Solve for x
    x = 360,234,145.50/18,421.56
  6. Step 6: Final answer
    x = 19,555.03

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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.