Home / 43,948.08-65,921.04-12,783.60

Finding the Fourth Proportional to 43,948.08, 65,921.04 and 12,783.60

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Solution

The fourth proportional to 43,948.08, 65,921.04 and 12,783.60 is: 19,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,948.08 : 65,921.04 = 12,783.60 : x
  2. Step 2: Convert to fraction form
    43,948.08/65,921.04 = 12,783.60/x
  3. Step 3: Cross multiply
    43,948.08x = 65,921.04 × 12,783.60
  4. Step 4: Simplify right side
    43,948.08x = 842,708,206.94
  5. Step 5: Solve for x
    x = 842,708,206.94/43,948.08
  6. Step 6: Final answer
    x = 19,175.09

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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.