Home / 27,281.25-37,635.74-19,715.60

Finding the Fourth Proportional to 27,281.25, 37,635.74 and 19,715.60

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Solution

The fourth proportional to 27,281.25, 37,635.74 and 19,715.60 is: 27,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281.25 : 37,635.74 = 19,715.60 : x
  2. Step 2: Convert to fraction form
    27,281.25/37,635.74 = 19,715.60/x
  3. Step 3: Cross multiply
    27,281.25x = 37,635.74 × 19,715.60
  4. Step 4: Simplify right side
    27,281.25x = 742,011,007.37
  5. Step 5: Solve for x
    x = 742,011,007.37/27,281.25
  6. Step 6: Final answer
    x = 27,198.58

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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.