Home / 30,945.96-42,706.32-16,799.70

Finding the Fourth Proportional to 30,945.96, 42,706.32 and 16,799.70

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Solution

The fourth proportional to 30,945.96, 42,706.32 and 16,799.70 is: 23,184.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.96 : 42,706.32 = 16,799.70 : x
  2. Step 2: Convert to fraction form
    30,945.96/42,706.32 = 16,799.70/x
  3. Step 3: Cross multiply
    30,945.96x = 42,706.32 × 16,799.70
  4. Step 4: Simplify right side
    30,945.96x = 717,453,364.10
  5. Step 5: Solve for x
    x = 717,453,364.10/30,945.96
  6. Step 6: Final answer
    x = 23,184.07

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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.