Home / 28,038.10-38,692.43-15,462.85

Finding the Fourth Proportional to 28,038.10, 38,692.43 and 15,462.85

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Solution

The fourth proportional to 28,038.10, 38,692.43 and 15,462.85 is: 21,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.10 : 38,692.43 = 15,462.85 : x
  2. Step 2: Convert to fraction form
    28,038.10/38,692.43 = 15,462.85/x
  3. Step 3: Cross multiply
    28,038.10x = 38,692.43 × 15,462.85
  4. Step 4: Simplify right side
    28,038.10x = 598,295,241.23
  5. Step 5: Solve for x
    x = 598,295,241.23/28,038.10
  6. Step 6: Final answer
    x = 21,338.65

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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.