Home / 27,719.09-38,252.27-15,143.93

Finding the Fourth Proportional to 27,719.09, 38,252.27 and 15,143.93

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Solution

The fourth proportional to 27,719.09, 38,252.27 and 15,143.93 is: 20,898.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.09 : 38,252.27 = 15,143.93 : x
  2. Step 2: Convert to fraction form
    27,719.09/38,252.27 = 15,143.93/x
  3. Step 3: Cross multiply
    27,719.09x = 38,252.27 × 15,143.93
  4. Step 4: Simplify right side
    27,719.09x = 579,289,432.24
  5. Step 5: Solve for x
    x = 579,289,432.24/27,719.09
  6. Step 6: Final answer
    x = 20,898.58

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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.