Home / 20,645.40-30,968.10-5,062.89

Finding the Fourth Proportional to 20,645.40, 30,968.10 and 5,062.89

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Solution

The fourth proportional to 20,645.40, 30,968.10 and 5,062.89 is: 7,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.40 : 30,968.10 = 5,062.89 : x
  2. Step 2: Convert to fraction form
    20,645.40/30,968.10 = 5,062.89/x
  3. Step 3: Cross multiply
    20,645.40x = 30,968.10 × 5,062.89
  4. Step 4: Simplify right side
    20,645.40x = 156,788,083.81
  5. Step 5: Solve for x
    x = 156,788,083.81/20,645.40
  6. Step 6: Final answer
    x = 7,594.34

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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.