Home / 36,885.61-55,383.77-21,108.45

Finding the Fourth Proportional to 36,885.61, 55,383.77 and 21,108.45

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Solution

The fourth proportional to 36,885.61, 55,383.77 and 21,108.45 is: 31,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,885.61 : 55,383.77 = 21,108.45 : x
  2. Step 2: Convert to fraction form
    36,885.61/55,383.77 = 21,108.45/x
  3. Step 3: Cross multiply
    36,885.61x = 55,383.77 × 21,108.45
  4. Step 4: Simplify right side
    36,885.61x = 1,169,065,800.32
  5. Step 5: Solve for x
    x = 1,169,065,800.32/36,885.61
  6. Step 6: Final answer
    x = 31,694.36

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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.