Home / 27,826.55-38,400.75-15,079.76

Finding the Fourth Proportional to 27,826.55, 38,400.75 and 15,079.76

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Solution

The fourth proportional to 27,826.55, 38,400.75 and 15,079.76 is: 20,810.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,826.55 : 38,400.75 = 15,079.76 : x
  2. Step 2: Convert to fraction form
    27,826.55/38,400.75 = 15,079.76/x
  3. Step 3: Cross multiply
    27,826.55x = 38,400.75 × 15,079.76
  4. Step 4: Simplify right side
    27,826.55x = 579,074,093.82
  5. Step 5: Solve for x
    x = 579,074,093.82/27,826.55
  6. Step 6: Final answer
    x = 20,810.13

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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.