Home / 19,381.05-26,724.81-16,840.71

Finding the Fourth Proportional to 19,381.05, 26,724.81 and 16,840.71

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Solution

The fourth proportional to 19,381.05, 26,724.81 and 16,840.71 is: 23,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.05 : 26,724.81 = 16,840.71 : x
  2. Step 2: Convert to fraction form
    19,381.05/26,724.81 = 16,840.71/x
  3. Step 3: Cross multiply
    19,381.05x = 26,724.81 × 16,840.71
  4. Step 4: Simplify right side
    19,381.05x = 450,064,775.02
  5. Step 5: Solve for x
    x = 450,064,775.02/19,381.05
  6. Step 6: Final answer
    x = 23,221.90

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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.