Home / 25,323.20-38,009.10-12,857.30

Finding the Fourth Proportional to 25,323.20, 38,009.10 and 12,857.30

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Solution

The fourth proportional to 25,323.20, 38,009.10 and 12,857.30 is: 19,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,323.20 : 38,009.10 = 12,857.30 : x
  2. Step 2: Convert to fraction form
    25,323.20/38,009.10 = 12,857.30/x
  3. Step 3: Cross multiply
    25,323.20x = 38,009.10 × 12,857.30
  4. Step 4: Simplify right side
    25,323.20x = 488,694,401.43
  5. Step 5: Solve for x
    x = 488,694,401.43/25,323.20
  6. Step 6: Final answer
    x = 19,298.29

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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.