Home / 28,101.14-38,706.88-19,588.08

Finding the Fourth Proportional to 28,101.14, 38,706.88 and 19,588.08

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Solution

The fourth proportional to 28,101.14, 38,706.88 and 19,588.08 is: 26,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.14 : 38,706.88 = 19,588.08 : x
  2. Step 2: Convert to fraction form
    28,101.14/38,706.88 = 19,588.08/x
  3. Step 3: Cross multiply
    28,101.14x = 38,706.88 × 19,588.08
  4. Step 4: Simplify right side
    28,101.14x = 758,193,461.99
  5. Step 5: Solve for x
    x = 758,193,461.99/28,101.14
  6. Step 6: Final answer
    x = 26,980.88

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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.