Home / 28,721.67-39,631.06-15,973.18

Finding the Fourth Proportional to 28,721.67, 39,631.06 and 15,973.18

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Solution

The fourth proportional to 28,721.67, 39,631.06 and 15,973.18 is: 22,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.67 : 39,631.06 = 15,973.18 : x
  2. Step 2: Convert to fraction form
    28,721.67/39,631.06 = 15,973.18/x
  3. Step 3: Cross multiply
    28,721.67x = 39,631.06 × 15,973.18
  4. Step 4: Simplify right side
    28,721.67x = 633,034,054.97
  5. Step 5: Solve for x
    x = 633,034,054.97/28,721.67
  6. Step 6: Final answer
    x = 22,040.29

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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.