Home / 42,893.45-64,348.68-13,310.02

Finding the Fourth Proportional to 42,893.45, 64,348.68 and 13,310.02

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Solution

The fourth proportional to 42,893.45, 64,348.68 and 13,310.02 is: 19,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,893.45 : 64,348.68 = 13,310.02 : x
  2. Step 2: Convert to fraction form
    42,893.45/64,348.68 = 13,310.02/x
  3. Step 3: Cross multiply
    42,893.45x = 64,348.68 × 13,310.02
  4. Step 4: Simplify right side
    42,893.45x = 856,482,273.25
  5. Step 5: Solve for x
    x = 856,482,273.25/42,893.45
  6. Step 6: Final answer
    x = 19,967.67

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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.