Home / 27,386.88-37,785.06-21,626.05

Finding the Fourth Proportional to 27,386.88, 37,785.06 and 21,626.05

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Solution

The fourth proportional to 27,386.88, 37,785.06 and 21,626.05 is: 29,836.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,386.88 : 37,785.06 = 21,626.05 : x
  2. Step 2: Convert to fraction form
    27,386.88/37,785.06 = 21,626.05/x
  3. Step 3: Cross multiply
    27,386.88x = 37,785.06 × 21,626.05
  4. Step 4: Simplify right side
    27,386.88x = 817,141,596.81
  5. Step 5: Solve for x
    x = 817,141,596.81/27,386.88
  6. Step 6: Final answer
    x = 29,836.97

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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.