Home / 18,025.68-27,038.48-4,878.40

Finding the Fourth Proportional to 18,025.68, 27,038.48 and 4,878.40

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Solution

The fourth proportional to 18,025.68, 27,038.48 and 4,878.40 is: 7,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.68 : 27,038.48 = 4,878.40 : x
  2. Step 2: Convert to fraction form
    18,025.68/27,038.48 = 4,878.40/x
  3. Step 3: Cross multiply
    18,025.68x = 27,038.48 × 4,878.40
  4. Step 4: Simplify right side
    18,025.68x = 131,904,520.83
  5. Step 5: Solve for x
    x = 131,904,520.83/18,025.68
  6. Step 6: Final answer
    x = 7,317.59

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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.