Home / 18,905.55-28,164.32-18,052.62

Finding the Fourth Proportional to 18,905.55, 28,164.32 and 18,052.62

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Solution

The fourth proportional to 18,905.55, 28,164.32 and 18,052.62 is: 26,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.55 : 28,164.32 = 18,052.62 : x
  2. Step 2: Convert to fraction form
    18,905.55/28,164.32 = 18,052.62/x
  3. Step 3: Cross multiply
    18,905.55x = 28,164.32 × 18,052.62
  4. Step 4: Simplify right side
    18,905.55x = 508,439,676.26
  5. Step 5: Solve for x
    x = 508,439,676.26/18,905.55
  6. Step 6: Final answer
    x = 26,893.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.