Home / 30,911.04-42,657.21-16,763.82

Finding the Fourth Proportional to 30,911.04, 42,657.21 and 16,763.82

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Solution

The fourth proportional to 30,911.04, 42,657.21 and 16,763.82 is: 23,134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.04 : 42,657.21 = 16,763.82 : x
  2. Step 2: Convert to fraction form
    30,911.04/42,657.21 = 16,763.82/x
  3. Step 3: Cross multiply
    30,911.04x = 42,657.21 × 16,763.82
  4. Step 4: Simplify right side
    30,911.04x = 715,097,790.14
  5. Step 5: Solve for x
    x = 715,097,790.14/30,911.04
  6. Step 6: Final answer
    x = 23,134.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.