Home / 20,440.97-30,618.36-9,356.97

Finding the Fourth Proportional to 20,440.97, 30,618.36 and 9,356.97

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Solution

The fourth proportional to 20,440.97, 30,618.36 and 9,356.97 is: 14,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.97 : 30,618.36 = 9,356.97 : x
  2. Step 2: Convert to fraction form
    20,440.97/30,618.36 = 9,356.97/x
  3. Step 3: Cross multiply
    20,440.97x = 30,618.36 × 9,356.97
  4. Step 4: Simplify right side
    20,440.97x = 286,495,075.97
  5. Step 5: Solve for x
    x = 286,495,075.97/20,440.97
  6. Step 6: Final answer
    x = 14,015.73

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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.