Home / 28,203.19-38,923.13-15,627.94

Finding the Fourth Proportional to 28,203.19, 38,923.13 and 15,627.94

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Solution

The fourth proportional to 28,203.19, 38,923.13 and 15,627.94 is: 21,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.19 : 38,923.13 = 15,627.94 : x
  2. Step 2: Convert to fraction form
    28,203.19/38,923.13 = 15,627.94/x
  3. Step 3: Cross multiply
    28,203.19x = 38,923.13 × 15,627.94
  4. Step 4: Simplify right side
    28,203.19x = 608,288,282.01
  5. Step 5: Solve for x
    x = 608,288,282.01/28,203.19
  6. Step 6: Final answer
    x = 21,568.07

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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.