Home / 30,897.09-42,638.27-16,749.97

Finding the Fourth Proportional to 30,897.09, 42,638.27 and 16,749.97

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Solution

The fourth proportional to 30,897.09, 42,638.27 and 16,749.97 is: 23,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.09 : 42,638.27 = 16,749.97 : x
  2. Step 2: Convert to fraction form
    30,897.09/42,638.27 = 16,749.97/x
  3. Step 3: Cross multiply
    30,897.09x = 42,638.27 × 16,749.97
  4. Step 4: Simplify right side
    30,897.09x = 714,189,553.01
  5. Step 5: Solve for x
    x = 714,189,553.01/30,897.09
  6. Step 6: Final answer
    x = 23,115.11

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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.