Home / 30,358.74-45,553.61-20,477.30

Finding the Fourth Proportional to 30,358.74, 45,553.61 and 20,477.30

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Solution

The fourth proportional to 30,358.74, 45,553.61 and 20,477.30 is: 30,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.74 : 45,553.61 = 20,477.30 : x
  2. Step 2: Convert to fraction form
    30,358.74/45,553.61 = 20,477.30/x
  3. Step 3: Cross multiply
    30,358.74x = 45,553.61 × 20,477.30
  4. Step 4: Simplify right side
    30,358.74x = 932,814,607.90
  5. Step 5: Solve for x
    x = 932,814,607.90/30,358.74
  6. Step 6: Final answer
    x = 30,726.39

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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.