Home / 27,782.64-38,339.75-15,035.54

Finding the Fourth Proportional to 27,782.64, 38,339.75 and 15,035.54

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Solution

The fourth proportional to 27,782.64, 38,339.75 and 15,035.54 is: 20,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.64 : 38,339.75 = 15,035.54 : x
  2. Step 2: Convert to fraction form
    27,782.64/38,339.75 = 15,035.54/x
  3. Step 3: Cross multiply
    27,782.64x = 38,339.75 × 15,035.54
  4. Step 4: Simplify right side
    27,782.64x = 576,458,929.52
  5. Step 5: Solve for x
    x = 576,458,929.52/27,782.64
  6. Step 6: Final answer
    x = 20,748.89

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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.