Home / 25,372.16-38,048.32-12,886.72

Finding the Fourth Proportional to 25,372.16, 38,048.32 and 12,886.72

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Solution

The fourth proportional to 25,372.16, 38,048.32 and 12,886.72 is: 19,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,372.16 : 38,048.32 = 12,886.72 : x
  2. Step 2: Convert to fraction form
    25,372.16/38,048.32 = 12,886.72/x
  3. Step 3: Cross multiply
    25,372.16x = 38,048.32 × 12,886.72
  4. Step 4: Simplify right side
    25,372.16x = 490,318,046.31
  5. Step 5: Solve for x
    x = 490,318,046.31/25,372.16
  6. Step 6: Final answer
    x = 19,325.04

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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.