Home / 26,945.76-40,418.88-9,428.16

Finding the Fourth Proportional to 26,945.76, 40,418.88 and 9,428.16

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Solution

The fourth proportional to 26,945.76, 40,418.88 and 9,428.16 is: 14,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,945.76 : 40,418.88 = 9,428.16 : x
  2. Step 2: Convert to fraction form
    26,945.76/40,418.88 = 9,428.16/x
  3. Step 3: Cross multiply
    26,945.76x = 40,418.88 × 9,428.16
  4. Step 4: Simplify right side
    26,945.76x = 381,075,667.66
  5. Step 5: Solve for x
    x = 381,075,667.66/26,945.76
  6. Step 6: Final answer
    x = 14,142.32

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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.