Home / 42,461.45-63,692.40-12,879.32

Finding the Fourth Proportional to 42,461.45, 63,692.40 and 12,879.32

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Solution

The fourth proportional to 42,461.45, 63,692.40 and 12,879.32 is: 19,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,461.45 : 63,692.40 = 12,879.32 : x
  2. Step 2: Convert to fraction form
    42,461.45/63,692.40 = 12,879.32/x
  3. Step 3: Cross multiply
    42,461.45x = 63,692.40 × 12,879.32
  4. Step 4: Simplify right side
    42,461.45x = 820,314,531.00
  5. Step 5: Solve for x
    x = 820,314,531.00/42,461.45
  6. Step 6: Final answer
    x = 19,319.04

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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.