Home / 37,974.75-52,404.95-20,980.16

Finding the Fourth Proportional to 37,974.75, 52,404.95 and 20,980.16

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Solution

The fourth proportional to 37,974.75, 52,404.95 and 20,980.16 is: 28,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,974.75 : 52,404.95 = 20,980.16 : x
  2. Step 2: Convert to fraction form
    37,974.75/52,404.95 = 20,980.16/x
  3. Step 3: Cross multiply
    37,974.75x = 52,404.95 × 20,980.16
  4. Step 4: Simplify right side
    37,974.75x = 1,099,463,868.87
  5. Step 5: Solve for x
    x = 1,099,463,868.87/37,974.75
  6. Step 6: Final answer
    x = 28,952.50

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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.