Home / 27,889.02-38,486.36-15,313.68

Finding the Fourth Proportional to 27,889.02, 38,486.36 and 15,313.68

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Solution

The fourth proportional to 27,889.02, 38,486.36 and 15,313.68 is: 21,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889.02 : 38,486.36 = 15,313.68 : x
  2. Step 2: Convert to fraction form
    27,889.02/38,486.36 = 15,313.68/x
  3. Step 3: Cross multiply
    27,889.02x = 38,486.36 × 15,313.68
  4. Step 4: Simplify right side
    27,889.02x = 589,367,801.40
  5. Step 5: Solve for x
    x = 589,367,801.40/27,889.02
  6. Step 6: Final answer
    x = 21,132.61

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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.