Home / 49,329.40-74,003.70-21,249.40

Finding the Fourth Proportional to 49,329.40, 74,003.70 and 21,249.40

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Solution

The fourth proportional to 49,329.40, 74,003.70 and 21,249.40 is: 31,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,329.40 : 74,003.70 = 21,249.40 : x
  2. Step 2: Convert to fraction form
    49,329.40/74,003.70 = 21,249.40/x
  3. Step 3: Cross multiply
    49,329.40x = 74,003.70 × 21,249.40
  4. Step 4: Simplify right side
    49,329.40x = 1,572,534,222.78
  5. Step 5: Solve for x
    x = 1,572,534,222.78/49,329.40
  6. Step 6: Final answer
    x = 31,878.24

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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.