Home / 28,055.17-38,719.71-16,120.83

Finding the Fourth Proportional to 28,055.17, 38,719.71 and 16,120.83

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Solution

The fourth proportional to 28,055.17, 38,719.71 and 16,120.83 is: 22,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.17 : 38,719.71 = 16,120.83 : x
  2. Step 2: Convert to fraction form
    28,055.17/38,719.71 = 16,120.83/x
  3. Step 3: Cross multiply
    28,055.17x = 38,719.71 × 16,120.83
  4. Step 4: Simplify right side
    28,055.17x = 624,193,862.56
  5. Step 5: Solve for x
    x = 624,193,862.56/28,055.17
  6. Step 6: Final answer
    x = 22,248.80

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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.