Home / 30,780.43-46,164.88-19,165.39

Finding the Fourth Proportional to 30,780.43, 46,164.88 and 19,165.39

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Solution

The fourth proportional to 30,780.43, 46,164.88 and 19,165.39 is: 28,744.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.43 : 46,164.88 = 19,165.39 : x
  2. Step 2: Convert to fraction form
    30,780.43/46,164.88 = 19,165.39/x
  3. Step 3: Cross multiply
    30,780.43x = 46,164.88 × 19,165.39
  4. Step 4: Simplify right side
    30,780.43x = 884,767,929.50
  5. Step 5: Solve for x
    x = 884,767,929.50/30,780.43
  6. Step 6: Final answer
    x = 28,744.50

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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.