Home / 28,299.21-39,079.17-18,251.16

Finding the Fourth Proportional to 28,299.21, 39,079.17 and 18,251.16

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Solution

The fourth proportional to 28,299.21, 39,079.17 and 18,251.16 is: 25,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.21 : 39,079.17 = 18,251.16 : x
  2. Step 2: Convert to fraction form
    28,299.21/39,079.17 = 18,251.16/x
  3. Step 3: Cross multiply
    28,299.21x = 39,079.17 × 18,251.16
  4. Step 4: Simplify right side
    28,299.21x = 713,240,184.34
  5. Step 5: Solve for x
    x = 713,240,184.34/28,299.21
  6. Step 6: Final answer
    x = 25,203.54

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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.