Home / 28,330.40-39,104.19-18,898.94

Finding the Fourth Proportional to 28,330.40, 39,104.19 and 18,898.94

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Solution

The fourth proportional to 28,330.40, 39,104.19 and 18,898.94 is: 26,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.40 : 39,104.19 = 18,898.94 : x
  2. Step 2: Convert to fraction form
    28,330.40/39,104.19 = 18,898.94/x
  3. Step 3: Cross multiply
    28,330.40x = 39,104.19 × 18,898.94
  4. Step 4: Simplify right side
    28,330.40x = 739,027,545.04
  5. Step 5: Solve for x
    x = 739,027,545.04/28,330.40
  6. Step 6: Final answer
    x = 26,086.03

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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.