Home / 17,038.90-25,595.61-12,140.02

Finding the Fourth Proportional to 17,038.90, 25,595.61 and 12,140.02

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Solution

The fourth proportional to 17,038.90, 25,595.61 and 12,140.02 is: 18,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,038.90 : 25,595.61 = 12,140.02 : x
  2. Step 2: Convert to fraction form
    17,038.90/25,595.61 = 12,140.02/x
  3. Step 3: Cross multiply
    17,038.90x = 25,595.61 × 12,140.02
  4. Step 4: Simplify right side
    17,038.90x = 310,731,217.31
  5. Step 5: Solve for x
    x = 310,731,217.31/17,038.90
  6. Step 6: Final answer
    x = 18,236.58

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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.