Home / 26,137.60-39,140.70-20,298.28

Finding the Fourth Proportional to 26,137.60, 39,140.70 and 20,298.28

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Solution

The fourth proportional to 26,137.60, 39,140.70 and 20,298.28 is: 30,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,137.60 : 39,140.70 = 20,298.28 : x
  2. Step 2: Convert to fraction form
    26,137.60/39,140.70 = 20,298.28/x
  3. Step 3: Cross multiply
    26,137.60x = 39,140.70 × 20,298.28
  4. Step 4: Simplify right side
    26,137.60x = 794,488,888.00
  5. Step 5: Solve for x
    x = 794,488,888.00/26,137.60
  6. Step 6: Final answer
    x = 30,396.40

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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.