Home / 30,565.80-45,880.13-18,727.74

Finding the Fourth Proportional to 30,565.80, 45,880.13 and 18,727.74

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Solution

The fourth proportional to 30,565.80, 45,880.13 and 18,727.74 is: 28,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,565.80 : 45,880.13 = 18,727.74 : x
  2. Step 2: Convert to fraction form
    30,565.80/45,880.13 = 18,727.74/x
  3. Step 3: Cross multiply
    30,565.80x = 45,880.13 × 18,727.74
  4. Step 4: Simplify right side
    30,565.80x = 859,231,192.63
  5. Step 5: Solve for x
    x = 859,231,192.63/30,565.80
  6. Step 6: Final answer
    x = 28,110.87

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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.