Home / 27,882.02-38,477.86-15,135.72

Finding the Fourth Proportional to 27,882.02, 38,477.86 and 15,135.72

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Solution

The fourth proportional to 27,882.02, 38,477.86 and 15,135.72 is: 20,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.02 : 38,477.86 = 15,135.72 : x
  2. Step 2: Convert to fraction form
    27,882.02/38,477.86 = 15,135.72/x
  3. Step 3: Cross multiply
    27,882.02x = 38,477.86 × 15,135.72
  4. Step 4: Simplify right side
    27,882.02x = 582,390,039.48
  5. Step 5: Solve for x
    x = 582,390,039.48/27,882.02
  6. Step 6: Final answer
    x = 20,887.66

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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.