Home / 28,076.16-38,738.88-16,901.76

Finding the Fourth Proportional to 28,076.16, 38,738.88 and 16,901.76

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Solution

The fourth proportional to 28,076.16, 38,738.88 and 16,901.76 is: 23,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.16 : 38,738.88 = 16,901.76 : x
  2. Step 2: Convert to fraction form
    28,076.16/38,738.88 = 16,901.76/x
  3. Step 3: Cross multiply
    28,076.16x = 38,738.88 × 16,901.76
  4. Step 4: Simplify right side
    28,076.16x = 654,755,252.43
  5. Step 5: Solve for x
    x = 654,755,252.43/28,076.16
  6. Step 6: Final answer
    x = 23,320.68

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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.