Home / 26,638.60-39,927.12-19,133.68

Finding the Fourth Proportional to 26,638.60, 39,927.12 and 19,133.68

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Solution

The fourth proportional to 26,638.60, 39,927.12 and 19,133.68 is: 28,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,638.60 : 39,927.12 = 19,133.68 : x
  2. Step 2: Convert to fraction form
    26,638.60/39,927.12 = 19,133.68/x
  3. Step 3: Cross multiply
    26,638.60x = 39,927.12 × 19,133.68
  4. Step 4: Simplify right side
    26,638.60x = 763,952,737.40
  5. Step 5: Solve for x
    x = 763,952,737.40/26,638.60
  6. Step 6: Final answer
    x = 28,678.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.