Home / 27,715.19-38,246.16-15,139.94

Finding the Fourth Proportional to 27,715.19, 38,246.16 and 15,139.94

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Solution

The fourth proportional to 27,715.19, 38,246.16 and 15,139.94 is: 20,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,715.19 : 38,246.16 = 15,139.94 : x
  2. Step 2: Convert to fraction form
    27,715.19/38,246.16 = 15,139.94/x
  3. Step 3: Cross multiply
    27,715.19x = 38,246.16 × 15,139.94
  4. Step 4: Simplify right side
    27,715.19x = 579,044,720.02
  5. Step 5: Solve for x
    x = 579,044,720.02/27,715.19
  6. Step 6: Final answer
    x = 20,892.68

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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.