Home / 36,920.88-50,944-21,004.40

Finding the Fourth Proportional to 36,920.88, 50,944 and 21,004.40

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Solution

The fourth proportional to 36,920.88, 50,944 and 21,004.40 is: 28,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920.88 : 50,944 = 21,004.40 : x
  2. Step 2: Convert to fraction form
    36,920.88/50,944 = 21,004.40/x
  3. Step 3: Cross multiply
    36,920.88x = 50,944 × 21,004.40
  4. Step 4: Simplify right side
    36,920.88x = 1,070,048,153.60
  5. Step 5: Solve for x
    x = 1,070,048,153.60/36,920.88
  6. Step 6: Final answer
    x = 28,982.20

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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.