Home / 25,705.30-38,529.15-10,911.70

Finding the Fourth Proportional to 25,705.30, 38,529.15 and 10,911.70

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Solution

The fourth proportional to 25,705.30, 38,529.15 and 10,911.70 is: 16,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.30 : 38,529.15 = 10,911.70 : x
  2. Step 2: Convert to fraction form
    25,705.30/38,529.15 = 10,911.70/x
  3. Step 3: Cross multiply
    25,705.30x = 38,529.15 × 10,911.70
  4. Step 4: Simplify right side
    25,705.30x = 420,418,526.06
  5. Step 5: Solve for x
    x = 420,418,526.06/25,705.30
  6. Step 6: Final answer
    x = 16,355.32

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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.