Home / 27,961.74-38,587.59-15,386.76

Finding the Fourth Proportional to 27,961.74, 38,587.59 and 15,386.76

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Solution

The fourth proportional to 27,961.74, 38,587.59 and 15,386.76 is: 21,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,961.74 : 38,587.59 = 15,386.76 : x
  2. Step 2: Convert to fraction form
    27,961.74/38,587.59 = 15,386.76/x
  3. Step 3: Cross multiply
    27,961.74x = 38,587.59 × 15,386.76
  4. Step 4: Simplify right side
    27,961.74x = 593,737,986.31
  5. Step 5: Solve for x
    x = 593,737,986.31/27,961.74
  6. Step 6: Final answer
    x = 21,233.94

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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.