Home / 28,102.48-42,161.40-9,635.92

Finding the Fourth Proportional to 28,102.48, 42,161.40 and 9,635.92

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Solution

The fourth proportional to 28,102.48, 42,161.40 and 9,635.92 is: 14,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.48 : 42,161.40 = 9,635.92 : x
  2. Step 2: Convert to fraction form
    28,102.48/42,161.40 = 9,635.92/x
  3. Step 3: Cross multiply
    28,102.48x = 42,161.40 × 9,635.92
  4. Step 4: Simplify right side
    28,102.48x = 406,263,877.49
  5. Step 5: Solve for x
    x = 406,263,877.49/28,102.48
  6. Step 6: Final answer
    x = 14,456.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.