Home / 19,887.80-27,445.23-10,935.41

Finding the Fourth Proportional to 19,887.80, 27,445.23 and 10,935.41

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Solution

The fourth proportional to 19,887.80, 27,445.23 and 10,935.41 is: 15,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.80 : 27,445.23 = 10,935.41 : x
  2. Step 2: Convert to fraction form
    19,887.80/27,445.23 = 10,935.41/x
  3. Step 3: Cross multiply
    19,887.80x = 27,445.23 × 10,935.41
  4. Step 4: Simplify right side
    19,887.80x = 300,124,705.37
  5. Step 5: Solve for x
    x = 300,124,705.37/19,887.80
  6. Step 6: Final answer
    x = 15,090.90

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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.