Home / 30,840.36-42,560.47-18,910.27

Finding the Fourth Proportional to 30,840.36, 42,560.47 and 18,910.27

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Solution

The fourth proportional to 30,840.36, 42,560.47 and 18,910.27 is: 26,096.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.36 : 42,560.47 = 18,910.27 : x
  2. Step 2: Convert to fraction form
    30,840.36/42,560.47 = 18,910.27/x
  3. Step 3: Cross multiply
    30,840.36x = 42,560.47 × 18,910.27
  4. Step 4: Simplify right side
    30,840.36x = 804,829,979.03
  5. Step 5: Solve for x
    x = 804,829,979.03/30,840.36
  6. Step 6: Final answer
    x = 26,096.65

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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.