Home / 25,991.64-38,983.41-8,461.35

Finding the Fourth Proportional to 25,991.64, 38,983.41 and 8,461.35

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Solution

The fourth proportional to 25,991.64, 38,983.41 and 8,461.35 is: 12,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.64 : 38,983.41 = 8,461.35 : x
  2. Step 2: Convert to fraction form
    25,991.64/38,983.41 = 8,461.35/x
  3. Step 3: Cross multiply
    25,991.64x = 38,983.41 × 8,461.35
  4. Step 4: Simplify right side
    25,991.64x = 329,852,276.20
  5. Step 5: Solve for x
    x = 329,852,276.20/25,991.64
  6. Step 6: Final answer
    x = 12,690.71

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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.