Home / 49,621.87-74,432.69-21,538.28

Finding the Fourth Proportional to 49,621.87, 74,432.69 and 21,538.28

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Solution

The fourth proportional to 49,621.87, 74,432.69 and 21,538.28 is: 32,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,621.87 : 74,432.69 = 21,538.28 : x
  2. Step 2: Convert to fraction form
    49,621.87/74,432.69 = 21,538.28/x
  3. Step 3: Cross multiply
    49,621.87x = 74,432.69 × 21,538.28
  4. Step 4: Simplify right side
    49,621.87x = 1,603,152,010.68
  5. Step 5: Solve for x
    x = 1,603,152,010.68/49,621.87
  6. Step 6: Final answer
    x = 32,307.37

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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.