Home / 30,975.21-42,746.67-16,828.92

Finding the Fourth Proportional to 30,975.21, 42,746.67 and 16,828.92

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Solution

The fourth proportional to 30,975.21, 42,746.67 and 16,828.92 is: 23,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.21 : 42,746.67 = 16,828.92 : x
  2. Step 2: Convert to fraction form
    30,975.21/42,746.67 = 16,828.92/x
  3. Step 3: Cross multiply
    30,975.21x = 42,746.67 × 16,828.92
  4. Step 4: Simplify right side
    30,975.21x = 719,380,289.70
  5. Step 5: Solve for x
    x = 719,380,289.70/30,975.21
  6. Step 6: Final answer
    x = 23,224.39

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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.