Home / 13,809.33-20,607.84-13,730.45

Finding the Fourth Proportional to 13,809.33, 20,607.84 and 13,730.45

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Solution

The fourth proportional to 13,809.33, 20,607.84 and 13,730.45 is: 20,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.33 : 20,607.84 = 13,730.45 : x
  2. Step 2: Convert to fraction form
    13,809.33/20,607.84 = 13,730.45/x
  3. Step 3: Cross multiply
    13,809.33x = 20,607.84 × 13,730.45
  4. Step 4: Simplify right side
    13,809.33x = 282,954,813.69
  5. Step 5: Solve for x
    x = 282,954,813.69/13,809.33
  6. Step 6: Final answer
    x = 20,490.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.