Home / 19,009.20-28,513.80-10,261.20

Finding the Fourth Proportional to 19,009.20, 28,513.80 and 10,261.20

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Solution

The fourth proportional to 19,009.20, 28,513.80 and 10,261.20 is: 15,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.20 : 28,513.80 = 10,261.20 : x
  2. Step 2: Convert to fraction form
    19,009.20/28,513.80 = 10,261.20/x
  3. Step 3: Cross multiply
    19,009.20x = 28,513.80 × 10,261.20
  4. Step 4: Simplify right side
    19,009.20x = 292,585,804.56
  5. Step 5: Solve for x
    x = 292,585,804.56/19,009.20
  6. Step 6: Final answer
    x = 15,391.80

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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.