Home / 20,606.54-30,887.09-13,482.21

Finding the Fourth Proportional to 20,606.54, 30,887.09 and 13,482.21

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Solution

The fourth proportional to 20,606.54, 30,887.09 and 13,482.21 is: 20,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.54 : 30,887.09 = 13,482.21 : x
  2. Step 2: Convert to fraction form
    20,606.54/30,887.09 = 13,482.21/x
  3. Step 3: Cross multiply
    20,606.54x = 30,887.09 × 13,482.21
  4. Step 4: Simplify right side
    20,606.54x = 416,426,267.37
  5. Step 5: Solve for x
    x = 416,426,267.37/20,606.54
  6. Step 6: Final answer
    x = 20,208.46

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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.