Home / 34,782.80-52,161.81-12,590.42

Finding the Fourth Proportional to 34,782.80, 52,161.81 and 12,590.42

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Solution

The fourth proportional to 34,782.80, 52,161.81 and 12,590.42 is: 18,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,782.80 : 52,161.81 = 12,590.42 : x
  2. Step 2: Convert to fraction form
    34,782.80/52,161.81 = 12,590.42/x
  3. Step 3: Cross multiply
    34,782.80x = 52,161.81 × 12,590.42
  4. Step 4: Simplify right side
    34,782.80x = 656,739,095.86
  5. Step 5: Solve for x
    x = 656,739,095.86/34,782.80
  6. Step 6: Final answer
    x = 18,881.15

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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.