Home / 30,295.22-45,226.35-28,294.11

Finding the Fourth Proportional to 30,295.22, 45,226.35 and 28,294.11

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Solution

The fourth proportional to 30,295.22, 45,226.35 and 28,294.11 is: 42,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.22 : 45,226.35 = 28,294.11 : x
  2. Step 2: Convert to fraction form
    30,295.22/45,226.35 = 28,294.11/x
  3. Step 3: Cross multiply
    30,295.22x = 45,226.35 × 28,294.11
  4. Step 4: Simplify right side
    30,295.22x = 1,279,639,321.80
  5. Step 5: Solve for x
    x = 1,279,639,321.80/30,295.22
  6. Step 6: Final answer
    x = 42,238.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.