Home / 27,826.22-38,400.23-15,079.40

Finding the Fourth Proportional to 27,826.22, 38,400.23 and 15,079.40

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Solution

The fourth proportional to 27,826.22, 38,400.23 and 15,079.40 is: 20,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,826.22 : 38,400.23 = 15,079.40 : x
  2. Step 2: Convert to fraction form
    27,826.22/38,400.23 = 15,079.40/x
  3. Step 3: Cross multiply
    27,826.22x = 38,400.23 × 15,079.40
  4. Step 4: Simplify right side
    27,826.22x = 579,052,333.14
  5. Step 5: Solve for x
    x = 579,052,333.14/27,826.22
  6. Step 6: Final answer
    x = 20,809.60

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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.