Home / 20,402.14-30,602.40-5,610.66

Finding the Fourth Proportional to 20,402.14, 30,602.40 and 5,610.66

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Solution

The fourth proportional to 20,402.14, 30,602.40 and 5,610.66 is: 8,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.14 : 30,602.40 = 5,610.66 : x
  2. Step 2: Convert to fraction form
    20,402.14/30,602.40 = 5,610.66/x
  3. Step 3: Cross multiply
    20,402.14x = 30,602.40 × 5,610.66
  4. Step 4: Simplify right side
    20,402.14x = 171,699,661.58
  5. Step 5: Solve for x
    x = 171,699,661.58/20,402.14
  6. Step 6: Final answer
    x = 8,415.77

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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.