Home / 27,689.08-38,211.08-15,113.92

Finding the Fourth Proportional to 27,689.08, 38,211.08 and 15,113.92

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Solution

The fourth proportional to 27,689.08, 38,211.08 and 15,113.92 is: 20,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.08 : 38,211.08 = 15,113.92 : x
  2. Step 2: Convert to fraction form
    27,689.08/38,211.08 = 15,113.92/x
  3. Step 3: Cross multiply
    27,689.08x = 38,211.08 × 15,113.92
  4. Step 4: Simplify right side
    27,689.08x = 577,519,206.23
  5. Step 5: Solve for x
    x = 577,519,206.23/27,689.08
  6. Step 6: Final answer
    x = 20,857.29

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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.