Home / 30,910.96-42,657.48-16,763.92

Finding the Fourth Proportional to 30,910.96, 42,657.48 and 16,763.92

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Solution

The fourth proportional to 30,910.96, 42,657.48 and 16,763.92 is: 23,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.96 : 42,657.48 = 16,763.92 : x
  2. Step 2: Convert to fraction form
    30,910.96/42,657.48 = 16,763.92/x
  3. Step 3: Cross multiply
    30,910.96x = 42,657.48 × 16,763.92
  4. Step 4: Simplify right side
    30,910.96x = 715,106,582.12
  5. Step 5: Solve for x
    x = 715,106,582.12/30,910.96
  6. Step 6: Final answer
    x = 23,134.40

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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.