Home / 20,928.32-31,361.76-10,525.76

Finding the Fourth Proportional to 20,928.32, 31,361.76 and 10,525.76

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Solution

The fourth proportional to 20,928.32, 31,361.76 and 10,525.76 is: 15,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.32 : 31,361.76 = 10,525.76 : x
  2. Step 2: Convert to fraction form
    20,928.32/31,361.76 = 10,525.76/x
  3. Step 3: Cross multiply
    20,928.32x = 31,361.76 × 10,525.76
  4. Step 4: Simplify right side
    20,928.32x = 330,106,358.94
  5. Step 5: Solve for x
    x = 330,106,358.94/20,928.32
  6. Step 6: Final answer
    x = 15,773.19

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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.