Home / 43,979.51-65,964.02-12,391.94

Finding the Fourth Proportional to 43,979.51, 65,964.02 and 12,391.94

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Solution

The fourth proportional to 43,979.51, 65,964.02 and 12,391.94 is: 18,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,979.51 : 65,964.02 = 12,391.94 : x
  2. Step 2: Convert to fraction form
    43,979.51/65,964.02 = 12,391.94/x
  3. Step 3: Cross multiply
    43,979.51x = 65,964.02 × 12,391.94
  4. Step 4: Simplify right side
    43,979.51x = 817,421,979.61
  5. Step 5: Solve for x
    x = 817,421,979.61/43,979.51
  6. Step 6: Final answer
    x = 18,586.43

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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.