Home / 30,216.86-45,309.72-13,562.61

Finding the Fourth Proportional to 30,216.86, 45,309.72 and 13,562.61

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Solution

The fourth proportional to 30,216.86, 45,309.72 and 13,562.61 is: 20,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.86 : 45,309.72 = 13,562.61 : x
  2. Step 2: Convert to fraction form
    30,216.86/45,309.72 = 13,562.61/x
  3. Step 3: Cross multiply
    30,216.86x = 45,309.72 × 13,562.61
  4. Step 4: Simplify right side
    30,216.86x = 614,518,061.57
  5. Step 5: Solve for x
    x = 614,518,061.57/30,216.86
  6. Step 6: Final answer
    x = 20,336.93

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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.