Home / 30,937.55-42,692.67-16,790.09

Finding the Fourth Proportional to 30,937.55, 42,692.67 and 16,790.09

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Solution

The fourth proportional to 30,937.55, 42,692.67 and 16,790.09 is: 23,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.55 : 42,692.67 = 16,790.09 : x
  2. Step 2: Convert to fraction form
    30,937.55/42,692.67 = 16,790.09/x
  3. Step 3: Cross multiply
    30,937.55x = 42,692.67 × 16,790.09
  4. Step 4: Simplify right side
    30,937.55x = 716,813,558.18
  5. Step 5: Solve for x
    x = 716,813,558.18/30,937.55
  6. Step 6: Final answer
    x = 23,169.70

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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.