Home / 28,263.60-39,009.60-19,763.46

Finding the Fourth Proportional to 28,263.60, 39,009.60 and 19,763.46

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Solution

The fourth proportional to 28,263.60, 39,009.60 and 19,763.46 is: 27,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.60 : 39,009.60 = 19,763.46 : x
  2. Step 2: Convert to fraction form
    28,263.60/39,009.60 = 19,763.46/x
  3. Step 3: Cross multiply
    28,263.60x = 39,009.60 × 19,763.46
  4. Step 4: Simplify right side
    28,263.60x = 770,964,669.22
  5. Step 5: Solve for x
    x = 770,964,669.22/28,263.60
  6. Step 6: Final answer
    x = 27,277.65

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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.