Home / 30,400.20-45,595.74-9,621

Finding the Fourth Proportional to 30,400.20, 45,595.74 and 9,621

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Solution

The fourth proportional to 30,400.20, 45,595.74 and 9,621 is: 14,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.20 : 45,595.74 = 9,621 : x
  2. Step 2: Convert to fraction form
    30,400.20/45,595.74 = 9,621/x
  3. Step 3: Cross multiply
    30,400.20x = 45,595.74 × 9,621
  4. Step 4: Simplify right side
    30,400.20x = 438,676,614.54
  5. Step 5: Solve for x
    x = 438,676,614.54/30,400.20
  6. Step 6: Final answer
    x = 14,430.06

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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.