Home / 26,906.81-40,329.23-13,391.15

Finding the Fourth Proportional to 26,906.81, 40,329.23 and 13,391.15

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Solution

The fourth proportional to 26,906.81, 40,329.23 and 13,391.15 is: 20,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,906.81 : 40,329.23 = 13,391.15 : x
  2. Step 2: Convert to fraction form
    26,906.81/40,329.23 = 13,391.15/x
  3. Step 3: Cross multiply
    26,906.81x = 40,329.23 × 13,391.15
  4. Step 4: Simplify right side
    26,906.81x = 540,054,499.71
  5. Step 5: Solve for x
    x = 540,054,499.71/26,906.81
  6. Step 6: Final answer
    x = 20,071.30

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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.