Home / 28,930.56-39,928.32-19,011.84

Finding the Fourth Proportional to 28,930.56, 39,928.32 and 19,011.84

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Solution

The fourth proportional to 28,930.56, 39,928.32 and 19,011.84 is: 26,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.56 : 39,928.32 = 19,011.84 : x
  2. Step 2: Convert to fraction form
    28,930.56/39,928.32 = 19,011.84/x
  3. Step 3: Cross multiply
    28,930.56x = 39,928.32 × 19,011.84
  4. Step 4: Simplify right side
    28,930.56x = 759,110,831.31
  5. Step 5: Solve for x
    x = 759,110,831.31/28,930.56
  6. Step 6: Final answer
    x = 26,239.06

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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.