Home / 30,913.23-42,660.03-16,766.10

Finding the Fourth Proportional to 30,913.23, 42,660.03 and 16,766.10

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Solution

The fourth proportional to 30,913.23, 42,660.03 and 16,766.10 is: 23,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.23 : 42,660.03 = 16,766.10 : x
  2. Step 2: Convert to fraction form
    30,913.23/42,660.03 = 16,766.10/x
  3. Step 3: Cross multiply
    30,913.23x = 42,660.03 × 16,766.10
  4. Step 4: Simplify right side
    30,913.23x = 715,242,328.98
  5. Step 5: Solve for x
    x = 715,242,328.98/30,913.23
  6. Step 6: Final answer
    x = 23,137.09

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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.