Home / 43,185.40-64,728.86-19,762.63

Finding the Fourth Proportional to 43,185.40, 64,728.86 and 19,762.63

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Solution

The fourth proportional to 43,185.40, 64,728.86 and 19,762.63 is: 29,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,185.40 : 64,728.86 = 19,762.63 : x
  2. Step 2: Convert to fraction form
    43,185.40/64,728.86 = 19,762.63/x
  3. Step 3: Cross multiply
    43,185.40x = 64,728.86 × 19,762.63
  4. Step 4: Simplify right side
    43,185.40x = 1,279,212,249.87
  5. Step 5: Solve for x
    x = 1,279,212,249.87/43,185.40
  6. Step 6: Final answer
    x = 29,621.41

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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.