Home / 28,072.62-38,780.10-22,444.74

Finding the Fourth Proportional to 28,072.62, 38,780.10 and 22,444.74

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Solution

The fourth proportional to 28,072.62, 38,780.10 and 22,444.74 is: 31,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.62 : 38,780.10 = 22,444.74 : x
  2. Step 2: Convert to fraction form
    28,072.62/38,780.10 = 22,444.74/x
  3. Step 3: Cross multiply
    28,072.62x = 38,780.10 × 22,444.74
  4. Step 4: Simplify right side
    28,072.62x = 870,409,261.67
  5. Step 5: Solve for x
    x = 870,409,261.67/28,072.62
  6. Step 6: Final answer
    x = 31,005.63

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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.