Home / 30,665.86-45,957.80-16,405.08

Finding the Fourth Proportional to 30,665.86, 45,957.80 and 16,405.08

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Solution

The fourth proportional to 30,665.86, 45,957.80 and 16,405.08 is: 24,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.86 : 45,957.80 = 16,405.08 : x
  2. Step 2: Convert to fraction form
    30,665.86/45,957.80 = 16,405.08/x
  3. Step 3: Cross multiply
    30,665.86x = 45,957.80 × 16,405.08
  4. Step 4: Simplify right side
    30,665.86x = 753,941,385.62
  5. Step 5: Solve for x
    x = 753,941,385.62/30,665.86
  6. Step 6: Final answer
    x = 24,585.69

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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.