Home / 42,758.94-64,147.87-14,678.36

Finding the Fourth Proportional to 42,758.94, 64,147.87 and 14,678.36

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Solution

The fourth proportional to 42,758.94, 64,147.87 and 14,678.36 is: 22,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,758.94 : 64,147.87 = 14,678.36 : x
  2. Step 2: Convert to fraction form
    42,758.94/64,147.87 = 14,678.36/x
  3. Step 3: Cross multiply
    42,758.94x = 64,147.87 × 14,678.36
  4. Step 4: Simplify right side
    42,758.94x = 941,585,529.09
  5. Step 5: Solve for x
    x = 941,585,529.09/42,758.94
  6. Step 6: Final answer
    x = 22,020.79

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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.