Home / 30,296.10-45,444.15-19,215.30

Finding the Fourth Proportional to 30,296.10, 45,444.15 and 19,215.30

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Solution

The fourth proportional to 30,296.10, 45,444.15 and 19,215.30 is: 28,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,296.10 : 45,444.15 = 19,215.30 : x
  2. Step 2: Convert to fraction form
    30,296.10/45,444.15 = 19,215.30/x
  3. Step 3: Cross multiply
    30,296.10x = 45,444.15 × 19,215.30
  4. Step 4: Simplify right side
    30,296.10x = 873,222,975.50
  5. Step 5: Solve for x
    x = 873,222,975.50/30,296.10
  6. Step 6: Final answer
    x = 28,822.95

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Similar ratio
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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.