Home / 27,838.43-38,417.15-15,091.64

Finding the Fourth Proportional to 27,838.43, 38,417.15 and 15,091.64

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Solution

The fourth proportional to 27,838.43, 38,417.15 and 15,091.64 is: 20,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.43 : 38,417.15 = 15,091.64 : x
  2. Step 2: Convert to fraction form
    27,838.43/38,417.15 = 15,091.64/x
  3. Step 3: Cross multiply
    27,838.43x = 38,417.15 × 15,091.64
  4. Step 4: Simplify right side
    27,838.43x = 579,777,818.21
  5. Step 5: Solve for x
    x = 579,777,818.21/27,838.43
  6. Step 6: Final answer
    x = 20,826.53

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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.