Home / 43,139.37-64,708.41-13,558.98

Finding the Fourth Proportional to 43,139.37, 64,708.41 and 13,558.98

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Solution

The fourth proportional to 43,139.37, 64,708.41 and 13,558.98 is: 20,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.37 : 64,708.41 = 13,558.98 : x
  2. Step 2: Convert to fraction form
    43,139.37/64,708.41 = 13,558.98/x
  3. Step 3: Cross multiply
    43,139.37x = 64,708.41 × 13,558.98
  4. Step 4: Simplify right side
    43,139.37x = 877,380,037.02
  5. Step 5: Solve for x
    x = 877,380,037.02/43,139.37
  6. Step 6: Final answer
    x = 20,338.27

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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.