Home / 19,439.95-26,829.08-11,889.67

Finding the Fourth Proportional to 19,439.95, 26,829.08 and 11,889.67

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Solution

The fourth proportional to 19,439.95, 26,829.08 and 11,889.67 is: 16,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.95 : 26,829.08 = 11,889.67 : x
  2. Step 2: Convert to fraction form
    19,439.95/26,829.08 = 11,889.67/x
  3. Step 3: Cross multiply
    19,439.95x = 26,829.08 × 11,889.67
  4. Step 4: Simplify right side
    19,439.95x = 318,988,907.60
  5. Step 5: Solve for x
    x = 318,988,907.60/19,439.95
  6. Step 6: Final answer
    x = 16,408.94

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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.