Home / 30,912.23-42,657.74-16,764.77

Finding the Fourth Proportional to 30,912.23, 42,657.74 and 16,764.77

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Solution

The fourth proportional to 30,912.23, 42,657.74 and 16,764.77 is: 23,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.23 : 42,657.74 = 16,764.77 : x
  2. Step 2: Convert to fraction form
    30,912.23/42,657.74 = 16,764.77/x
  3. Step 3: Cross multiply
    30,912.23x = 42,657.74 × 16,764.77
  4. Step 4: Simplify right side
    30,912.23x = 715,147,285.51
  5. Step 5: Solve for x
    x = 715,147,285.51/30,912.23
  6. Step 6: Final answer
    x = 23,134.77

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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.