Home / 20,802.47-28,705.25-11,848.10

Finding the Fourth Proportional to 20,802.47, 28,705.25 and 11,848.10

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Solution

The fourth proportional to 20,802.47, 28,705.25 and 11,848.10 is: 16,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.47 : 28,705.25 = 11,848.10 : x
  2. Step 2: Convert to fraction form
    20,802.47/28,705.25 = 11,848.10/x
  3. Step 3: Cross multiply
    20,802.47x = 28,705.25 × 11,848.10
  4. Step 4: Simplify right side
    20,802.47x = 340,102,613.28
  5. Step 5: Solve for x
    x = 340,102,613.28/20,802.47
  6. Step 6: Final answer
    x = 16,349.15

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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.