Home / 30,417.13-45,530.11-19,336.33

Finding the Fourth Proportional to 30,417.13, 45,530.11 and 19,336.33

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Solution

The fourth proportional to 30,417.13, 45,530.11 and 19,336.33 is: 28,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.13 : 45,530.11 = 19,336.33 : x
  2. Step 2: Convert to fraction form
    30,417.13/45,530.11 = 19,336.33/x
  3. Step 3: Cross multiply
    30,417.13x = 45,530.11 × 19,336.33
  4. Step 4: Simplify right side
    30,417.13x = 880,385,231.90
  5. Step 5: Solve for x
    x = 880,385,231.90/30,417.13
  6. Step 6: Final answer
    x = 28,943.73

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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.