Home / 43,485.37-65,228.51-13,902.55

Finding the Fourth Proportional to 43,485.37, 65,228.51 and 13,902.55

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Solution

The fourth proportional to 43,485.37, 65,228.51 and 13,902.55 is: 20,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,485.37 : 65,228.51 = 13,902.55 : x
  2. Step 2: Convert to fraction form
    43,485.37/65,228.51 = 13,902.55/x
  3. Step 3: Cross multiply
    43,485.37x = 65,228.51 × 13,902.55
  4. Step 4: Simplify right side
    43,485.37x = 906,842,621.70
  5. Step 5: Solve for x
    x = 906,842,621.70/43,485.37
  6. Step 6: Final answer
    x = 20,853.97

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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.