Home / 28,667.89-43,004.55-11,139.07

Finding the Fourth Proportional to 28,667.89, 43,004.55 and 11,139.07

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Solution

The fourth proportional to 28,667.89, 43,004.55 and 11,139.07 is: 16,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.89 : 43,004.55 = 11,139.07 : x
  2. Step 2: Convert to fraction form
    28,667.89/43,004.55 = 11,139.07/x
  3. Step 3: Cross multiply
    28,667.89x = 43,004.55 × 11,139.07
  4. Step 4: Simplify right side
    28,667.89x = 479,030,692.77
  5. Step 5: Solve for x
    x = 479,030,692.77/28,667.89
  6. Step 6: Final answer
    x = 16,709.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.