Home / 28,211.15-38,930.02-16,278.34

Finding the Fourth Proportional to 28,211.15, 38,930.02 and 16,278.34

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Solution

The fourth proportional to 28,211.15, 38,930.02 and 16,278.34 is: 22,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.15 : 38,930.02 = 16,278.34 : x
  2. Step 2: Convert to fraction form
    28,211.15/38,930.02 = 16,278.34/x
  3. Step 3: Cross multiply
    28,211.15x = 38,930.02 × 16,278.34
  4. Step 4: Simplify right side
    28,211.15x = 633,716,101.77
  5. Step 5: Solve for x
    x = 633,716,101.77/28,211.15
  6. Step 6: Final answer
    x = 22,463.32

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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.