Home / 30,887.16-42,623.82-16,739.64

Finding the Fourth Proportional to 30,887.16, 42,623.82 and 16,739.64

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Solution

The fourth proportional to 30,887.16, 42,623.82 and 16,739.64 is: 23,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.16 : 42,623.82 = 16,739.64 : x
  2. Step 2: Convert to fraction form
    30,887.16/42,623.82 = 16,739.64/x
  3. Step 3: Cross multiply
    30,887.16x = 42,623.82 × 16,739.64
  4. Step 4: Simplify right side
    30,887.16x = 713,507,402.22
  5. Step 5: Solve for x
    x = 713,507,402.22/30,887.16
  6. Step 6: Final answer
    x = 23,100.45

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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.