Home / 25,972.32-35,861-15,914.50

Finding the Fourth Proportional to 25,972.32, 35,861 and 15,914.50

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Solution

The fourth proportional to 25,972.32, 35,861 and 15,914.50 is: 21,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.32 : 35,861 = 15,914.50 : x
  2. Step 2: Convert to fraction form
    25,972.32/35,861 = 15,914.50/x
  3. Step 3: Cross multiply
    25,972.32x = 35,861 × 15,914.50
  4. Step 4: Simplify right side
    25,972.32x = 570,709,884.50
  5. Step 5: Solve for x
    x = 570,709,884.50/25,972.32
  6. Step 6: Final answer
    x = 21,973.77

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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.