Home / 25,969.80-38,930.04-8,427.36

Finding the Fourth Proportional to 25,969.80, 38,930.04 and 8,427.36

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Solution

The fourth proportional to 25,969.80, 38,930.04 and 8,427.36 is: 12,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.80 : 38,930.04 = 8,427.36 : x
  2. Step 2: Convert to fraction form
    25,969.80/38,930.04 = 8,427.36/x
  3. Step 3: Cross multiply
    25,969.80x = 38,930.04 × 8,427.36
  4. Step 4: Simplify right side
    25,969.80x = 328,077,461.89
  5. Step 5: Solve for x
    x = 328,077,461.89/25,969.80
  6. Step 6: Final answer
    x = 12,633.04

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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.