Home / 27,953.45-38,576.47-15,207.35

Finding the Fourth Proportional to 27,953.45, 38,576.47 and 15,207.35

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Solution

The fourth proportional to 27,953.45, 38,576.47 and 15,207.35 is: 20,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.45 : 38,576.47 = 15,207.35 : x
  2. Step 2: Convert to fraction form
    27,953.45/38,576.47 = 15,207.35/x
  3. Step 3: Cross multiply
    27,953.45x = 38,576.47 × 15,207.35
  4. Step 4: Simplify right side
    27,953.45x = 586,645,881.05
  5. Step 5: Solve for x
    x = 586,645,881.05/27,953.45
  6. Step 6: Final answer
    x = 20,986.53

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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.