Home / 20,506.32-30,759.50-5,715.63

Finding the Fourth Proportional to 20,506.32, 30,759.50 and 5,715.63

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Solution

The fourth proportional to 20,506.32, 30,759.50 and 5,715.63 is: 8,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.32 : 30,759.50 = 5,715.63 : x
  2. Step 2: Convert to fraction form
    20,506.32/30,759.50 = 5,715.63/x
  3. Step 3: Cross multiply
    20,506.32x = 30,759.50 × 5,715.63
  4. Step 4: Simplify right side
    20,506.32x = 175,809,935.27
  5. Step 5: Solve for x
    x = 175,809,935.27/20,506.32
  6. Step 6: Final answer
    x = 8,573.45

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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.