Home / 20,070.66-27,696.30-11,117.62

Finding the Fourth Proportional to 20,070.66, 27,696.30 and 11,117.62

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Solution

The fourth proportional to 20,070.66, 27,696.30 and 11,117.62 is: 15,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.66 : 27,696.30 = 11,117.62 : x
  2. Step 2: Convert to fraction form
    20,070.66/27,696.30 = 11,117.62/x
  3. Step 3: Cross multiply
    20,070.66x = 27,696.30 × 11,117.62
  4. Step 4: Simplify right side
    20,070.66x = 307,916,938.81
  5. Step 5: Solve for x
    x = 307,916,938.81/20,070.66
  6. Step 6: Final answer
    x = 15,341.64

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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.