Home / 20,557.08-30,828.06-10,020.60

Finding the Fourth Proportional to 20,557.08, 30,828.06 and 10,020.60

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Solution

The fourth proportional to 20,557.08, 30,828.06 and 10,020.60 is: 15,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.08 : 30,828.06 = 10,020.60 : x
  2. Step 2: Convert to fraction form
    20,557.08/30,828.06 = 10,020.60/x
  3. Step 3: Cross multiply
    20,557.08x = 30,828.06 × 10,020.60
  4. Step 4: Simplify right side
    20,557.08x = 308,915,658.04
  5. Step 5: Solve for x
    x = 308,915,658.04/20,557.08
  6. Step 6: Final answer
    x = 15,027.21

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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.