Home / 30,302.70-41,816.21-16,875.12

Finding the Fourth Proportional to 30,302.70, 41,816.21 and 16,875.12

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Solution

The fourth proportional to 30,302.70, 41,816.21 and 16,875.12 is: 23,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.70 : 41,816.21 = 16,875.12 : x
  2. Step 2: Convert to fraction form
    30,302.70/41,816.21 = 16,875.12/x
  3. Step 3: Cross multiply
    30,302.70x = 41,816.21 × 16,875.12
  4. Step 4: Simplify right side
    30,302.70x = 705,653,561.70
  5. Step 5: Solve for x
    x = 705,653,561.70/30,302.70
  6. Step 6: Final answer
    x = 23,286.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.