Home / 28,251.46-39,001.53-19,905.22

Finding the Fourth Proportional to 28,251.46, 39,001.53 and 19,905.22

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Solution

The fourth proportional to 28,251.46, 39,001.53 and 19,905.22 is: 27,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.46 : 39,001.53 = 19,905.22 : x
  2. Step 2: Convert to fraction form
    28,251.46/39,001.53 = 19,905.22/x
  3. Step 3: Cross multiply
    28,251.46x = 39,001.53 × 19,905.22
  4. Step 4: Simplify right side
    28,251.46x = 776,334,034.99
  5. Step 5: Solve for x
    x = 776,334,034.99/28,251.46
  6. Step 6: Final answer
    x = 27,479.43

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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.