Home / 26,020.32-35,878.32-20,715.36

Finding the Fourth Proportional to 26,020.32, 35,878.32 and 20,715.36

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Solution

The fourth proportional to 26,020.32, 35,878.32 and 20,715.36 is: 28,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,020.32 : 35,878.32 = 20,715.36 : x
  2. Step 2: Convert to fraction form
    26,020.32/35,878.32 = 20,715.36/x
  3. Step 3: Cross multiply
    26,020.32x = 35,878.32 × 20,715.36
  4. Step 4: Simplify right side
    26,020.32x = 743,232,315.00
  5. Step 5: Solve for x
    x = 743,232,315.00/26,020.32
  6. Step 6: Final answer
    x = 28,563.53

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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.