Home / 26,673.87-36,767.40-20,999.63

Finding the Fourth Proportional to 26,673.87, 36,767.40 and 20,999.63

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Solution

The fourth proportional to 26,673.87, 36,767.40 and 20,999.63 is: 28,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,673.87 : 36,767.40 = 20,999.63 : x
  2. Step 2: Convert to fraction form
    26,673.87/36,767.40 = 20,999.63/x
  3. Step 3: Cross multiply
    26,673.87x = 36,767.40 × 20,999.63
  4. Step 4: Simplify right side
    26,673.87x = 772,101,612.23
  5. Step 5: Solve for x
    x = 772,101,612.23/26,673.87
  6. Step 6: Final answer
    x = 28,945.99

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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.