Home / 20,460.42-30,641.40-13,866.60

Finding the Fourth Proportional to 20,460.42, 30,641.40 and 13,866.60

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Solution

The fourth proportional to 20,460.42, 30,641.40 and 13,866.60 is: 20,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.42 : 30,641.40 = 13,866.60 : x
  2. Step 2: Convert to fraction form
    20,460.42/30,641.40 = 13,866.60/x
  3. Step 3: Cross multiply
    20,460.42x = 30,641.40 × 13,866.60
  4. Step 4: Simplify right side
    20,460.42x = 424,892,037.24
  5. Step 5: Solve for x
    x = 424,892,037.24/20,460.42
  6. Step 6: Final answer
    x = 20,766.54

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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.