Home / 43,075.97-64,613.96-19,686

Finding the Fourth Proportional to 43,075.97, 64,613.96 and 19,686

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Solution

The fourth proportional to 43,075.97, 64,613.96 and 19,686 is: 29,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,075.97 : 64,613.96 = 19,686 : x
  2. Step 2: Convert to fraction form
    43,075.97/64,613.96 = 19,686/x
  3. Step 3: Cross multiply
    43,075.97x = 64,613.96 × 19,686
  4. Step 4: Simplify right side
    43,075.97x = 1,271,990,318.13
  5. Step 5: Solve for x
    x = 1,271,990,318.13/43,075.97
  6. Step 6: Final answer
    x = 29,529.00

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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.