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Finding the Fourth Proportional to 30,363.65, 45,534.54 and 12,834.84

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Solution

The fourth proportional to 30,363.65, 45,534.54 and 12,834.84 is: 19,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.65 : 45,534.54 = 12,834.84 : x
  2. Step 2: Convert to fraction form
    30,363.65/45,534.54 = 12,834.84/x
  3. Step 3: Cross multiply
    30,363.65x = 45,534.54 × 12,834.84
  4. Step 4: Simplify right side
    30,363.65x = 584,428,535.37
  5. Step 5: Solve for x
    x = 584,428,535.37/30,363.65
  6. Step 6: Final answer
    x = 19,247.64

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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.