Home / 28,905.40-39,843.30-23,591.08

Finding the Fourth Proportional to 28,905.40, 39,843.30 and 23,591.08

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Solution

The fourth proportional to 28,905.40, 39,843.30 and 23,591.08 is: 32,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.40 : 39,843.30 = 23,591.08 : x
  2. Step 2: Convert to fraction form
    28,905.40/39,843.30 = 23,591.08/x
  3. Step 3: Cross multiply
    28,905.40x = 39,843.30 × 23,591.08
  4. Step 4: Simplify right side
    28,905.40x = 939,946,477.76
  5. Step 5: Solve for x
    x = 939,946,477.76/28,905.40
  6. Step 6: Final answer
    x = 32,518.02

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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.