Home / 43,903.55-65,853.01-12,315.79

Finding the Fourth Proportional to 43,903.55, 65,853.01 and 12,315.79

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Solution

The fourth proportional to 43,903.55, 65,853.01 and 12,315.79 is: 18,473.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,903.55 : 65,853.01 = 12,315.79 : x
  2. Step 2: Convert to fraction form
    43,903.55/65,853.01 = 12,315.79/x
  3. Step 3: Cross multiply
    43,903.55x = 65,853.01 × 12,315.79
  4. Step 4: Simplify right side
    43,903.55x = 811,031,939.74
  5. Step 5: Solve for x
    x = 811,031,939.74/43,903.55
  6. Step 6: Final answer
    x = 18,473.04

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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.