Home / 27,858.40-38,438.67-16,531.58

Finding the Fourth Proportional to 27,858.40, 38,438.67 and 16,531.58

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Solution

The fourth proportional to 27,858.40, 38,438.67 and 16,531.58 is: 22,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.40 : 38,438.67 = 16,531.58 : x
  2. Step 2: Convert to fraction form
    27,858.40/38,438.67 = 16,531.58/x
  3. Step 3: Cross multiply
    27,858.40x = 38,438.67 × 16,531.58
  4. Step 4: Simplify right side
    27,858.40x = 635,451,756.01
  5. Step 5: Solve for x
    x = 635,451,756.01/27,858.40
  6. Step 6: Final answer
    x = 22,810.06

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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.