Home / 27,665.56-38,181.71-15,730.69

Finding the Fourth Proportional to 27,665.56, 38,181.71 and 15,730.69

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Solution

The fourth proportional to 27,665.56, 38,181.71 and 15,730.69 is: 21,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.56 : 38,181.71 = 15,730.69 : x
  2. Step 2: Convert to fraction form
    27,665.56/38,181.71 = 15,730.69/x
  3. Step 3: Cross multiply
    27,665.56x = 38,181.71 × 15,730.69
  4. Step 4: Simplify right side
    27,665.56x = 600,624,565.03
  5. Step 5: Solve for x
    x = 600,624,565.03/27,665.56
  6. Step 6: Final answer
    x = 21,710.19

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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.