Home / 20,802.12-28,696.05-14,090.10

Finding the Fourth Proportional to 20,802.12, 28,696.05 and 14,090.10

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Solution

The fourth proportional to 20,802.12, 28,696.05 and 14,090.10 is: 19,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.12 : 28,696.05 = 14,090.10 : x
  2. Step 2: Convert to fraction form
    20,802.12/28,696.05 = 14,090.10/x
  3. Step 3: Cross multiply
    20,802.12x = 28,696.05 × 14,090.10
  4. Step 4: Simplify right side
    20,802.12x = 404,330,214.11
  5. Step 5: Solve for x
    x = 404,330,214.11/20,802.12
  6. Step 6: Final answer
    x = 19,436.97

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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.