Home / 20,867.07-31,300.61-5,283.48

Finding the Fourth Proportional to 20,867.07, 31,300.61 and 5,283.48

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Solution

The fourth proportional to 20,867.07, 31,300.61 and 5,283.48 is: 7,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.07 : 31,300.61 = 5,283.48 : x
  2. Step 2: Convert to fraction form
    20,867.07/31,300.61 = 5,283.48/x
  3. Step 3: Cross multiply
    20,867.07x = 31,300.61 × 5,283.48
  4. Step 4: Simplify right side
    20,867.07x = 165,376,120.51
  5. Step 5: Solve for x
    x = 165,376,120.51/20,867.07
  6. Step 6: Final answer
    x = 7,925.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.