Home / 27,439.56-37,827.81-19,478.88

Finding the Fourth Proportional to 27,439.56, 37,827.81 and 19,478.88

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Solution

The fourth proportional to 27,439.56, 37,827.81 and 19,478.88 is: 26,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.56 : 37,827.81 = 19,478.88 : x
  2. Step 2: Convert to fraction form
    27,439.56/37,827.81 = 19,478.88/x
  3. Step 3: Cross multiply
    27,439.56x = 37,827.81 × 19,478.88
  4. Step 4: Simplify right side
    27,439.56x = 736,843,371.65
  5. Step 5: Solve for x
    x = 736,843,371.65/27,439.56
  6. Step 6: Final answer
    x = 26,853.32

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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.