Home / 28,537.92-42,824.70-20,533.50

Finding the Fourth Proportional to 28,537.92, 42,824.70 and 20,533.50

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Solution

The fourth proportional to 28,537.92, 42,824.70 and 20,533.50 is: 30,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.92 : 42,824.70 = 20,533.50 : x
  2. Step 2: Convert to fraction form
    28,537.92/42,824.70 = 20,533.50/x
  3. Step 3: Cross multiply
    28,537.92x = 42,824.70 × 20,533.50
  4. Step 4: Simplify right side
    28,537.92x = 879,340,977.45
  5. Step 5: Solve for x
    x = 879,340,977.45/28,537.92
  6. Step 6: Final answer
    x = 30,813.07

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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.