Home / 19,134.28-26,421.06-18,155.80

Finding the Fourth Proportional to 19,134.28, 26,421.06 and 18,155.80

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Solution

The fourth proportional to 19,134.28, 26,421.06 and 18,155.80 is: 25,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.28 : 26,421.06 = 18,155.80 : x
  2. Step 2: Convert to fraction form
    19,134.28/26,421.06 = 18,155.80/x
  3. Step 3: Cross multiply
    19,134.28x = 26,421.06 × 18,155.80
  4. Step 4: Simplify right side
    19,134.28x = 479,695,481.15
  5. Step 5: Solve for x
    x = 479,695,481.15/19,134.28
  6. Step 6: Final answer
    x = 25,069.95

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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.