Home / 20,064.66-27,688.31-11,111.46

Finding the Fourth Proportional to 20,064.66, 27,688.31 and 11,111.46

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Solution

The fourth proportional to 20,064.66, 27,688.31 and 11,111.46 is: 15,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.66 : 27,688.31 = 11,111.46 : x
  2. Step 2: Convert to fraction form
    20,064.66/27,688.31 = 11,111.46/x
  3. Step 3: Cross multiply
    20,064.66x = 27,688.31 × 11,111.46
  4. Step 4: Simplify right side
    20,064.66x = 307,657,493.48
  5. Step 5: Solve for x
    x = 307,657,493.48/20,064.66
  6. Step 6: Final answer
    x = 15,333.30

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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.