Home / 27,790.61-38,347.43-15,853.24

Finding the Fourth Proportional to 27,790.61, 38,347.43 and 15,853.24

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Solution

The fourth proportional to 27,790.61, 38,347.43 and 15,853.24 is: 21,875.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.61 : 38,347.43 = 15,853.24 : x
  2. Step 2: Convert to fraction form
    27,790.61/38,347.43 = 15,853.24/x
  3. Step 3: Cross multiply
    27,790.61x = 38,347.43 × 15,853.24
  4. Step 4: Simplify right side
    27,790.61x = 607,930,954.94
  5. Step 5: Solve for x
    x = 607,930,954.94/27,790.61
  6. Step 6: Final answer
    x = 21,875.41

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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.