Home / 27,439.82-37,880.04-18,380.78

Finding the Fourth Proportional to 27,439.82, 37,880.04 and 18,380.78

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Solution

The fourth proportional to 27,439.82, 37,880.04 and 18,380.78 is: 25,374.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.82 : 37,880.04 = 18,380.78 : x
  2. Step 2: Convert to fraction form
    27,439.82/37,880.04 = 18,380.78/x
  3. Step 3: Cross multiply
    27,439.82x = 37,880.04 × 18,380.78
  4. Step 4: Simplify right side
    27,439.82x = 696,264,681.63
  5. Step 5: Solve for x
    x = 696,264,681.63/27,439.82
  6. Step 6: Final answer
    x = 25,374.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.