Home / 42,461.45-63,692.32-12,879.54

Finding the Fourth Proportional to 42,461.45, 63,692.32 and 12,879.54

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Solution

The fourth proportional to 42,461.45, 63,692.32 and 12,879.54 is: 19,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,461.45 : 63,692.32 = 12,879.54 : x
  2. Step 2: Convert to fraction form
    42,461.45/63,692.32 = 12,879.54/x
  3. Step 3: Cross multiply
    42,461.45x = 63,692.32 × 12,879.54
  4. Step 4: Simplify right side
    42,461.45x = 820,327,783.13
  5. Step 5: Solve for x
    x = 820,327,783.13/42,461.45
  6. Step 6: Final answer
    x = 19,319.35

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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.