Home / 19,919.66-29,840.60-15,516.50

Finding the Fourth Proportional to 19,919.66, 29,840.60 and 15,516.50

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Solution

The fourth proportional to 19,919.66, 29,840.60 and 15,516.50 is: 23,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.66 : 29,840.60 = 15,516.50 : x
  2. Step 2: Convert to fraction form
    19,919.66/29,840.60 = 15,516.50/x
  3. Step 3: Cross multiply
    19,919.66x = 29,840.60 × 15,516.50
  4. Step 4: Simplify right side
    19,919.66x = 463,021,559.49
  5. Step 5: Solve for x
    x = 463,021,559.49/19,919.66
  6. Step 6: Final answer
    x = 23,244.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.