Home / 26,389.56-36,396.36-20,437.32

Finding the Fourth Proportional to 26,389.56, 36,396.36 and 20,437.32

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Solution

The fourth proportional to 26,389.56, 36,396.36 and 20,437.32 is: 28,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,389.56 : 36,396.36 = 20,437.32 : x
  2. Step 2: Convert to fraction form
    26,389.56/36,396.36 = 20,437.32/x
  3. Step 3: Cross multiply
    26,389.56x = 36,396.36 × 20,437.32
  4. Step 4: Simplify right side
    26,389.56x = 743,844,056.16
  5. Step 5: Solve for x
    x = 743,844,056.16/26,389.56
  6. Step 6: Final answer
    x = 28,187.06

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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.