Home / 36,341.80-54,509.29-12,643.68

Finding the Fourth Proportional to 36,341.80, 54,509.29 and 12,643.68

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Solution

The fourth proportional to 36,341.80, 54,509.29 and 12,643.68 is: 18,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,341.80 : 54,509.29 = 12,643.68 : x
  2. Step 2: Convert to fraction form
    36,341.80/54,509.29 = 12,643.68/x
  3. Step 3: Cross multiply
    36,341.80x = 54,509.29 × 12,643.68
  4. Step 4: Simplify right side
    36,341.80x = 689,198,019.79
  5. Step 5: Solve for x
    x = 689,198,019.79/36,341.80
  6. Step 6: Final answer
    x = 18,964.33

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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.