Home / 28,377.41-39,162.04-15,802.16

Finding the Fourth Proportional to 28,377.41, 39,162.04 and 15,802.16

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Solution

The fourth proportional to 28,377.41, 39,162.04 and 15,802.16 is: 21,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.41 : 39,162.04 = 15,802.16 : x
  2. Step 2: Convert to fraction form
    28,377.41/39,162.04 = 15,802.16/x
  3. Step 3: Cross multiply
    28,377.41x = 39,162.04 × 15,802.16
  4. Step 4: Simplify right side
    28,377.41x = 618,844,615.89
  5. Step 5: Solve for x
    x = 618,844,615.89/28,377.41
  6. Step 6: Final answer
    x = 21,807.65

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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.