Home / 30,913.65-42,660.27-16,766.19

Finding the Fourth Proportional to 30,913.65, 42,660.27 and 16,766.19

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Solution

The fourth proportional to 30,913.65, 42,660.27 and 16,766.19 is: 23,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.65 : 42,660.27 = 16,766.19 : x
  2. Step 2: Convert to fraction form
    30,913.65/42,660.27 = 16,766.19/x
  3. Step 3: Cross multiply
    30,913.65x = 42,660.27 × 16,766.19
  4. Step 4: Simplify right side
    30,913.65x = 715,250,192.27
  5. Step 5: Solve for x
    x = 715,250,192.27/30,913.65
  6. Step 6: Final answer
    x = 23,137.03

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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.