Home / 30,299.13-41,814.81-18,363.60

Finding the Fourth Proportional to 30,299.13, 41,814.81 and 18,363.60

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Solution

The fourth proportional to 30,299.13, 41,814.81 and 18,363.60 is: 25,342.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.13 : 41,814.81 = 18,363.60 : x
  2. Step 2: Convert to fraction form
    30,299.13/41,814.81 = 18,363.60/x
  3. Step 3: Cross multiply
    30,299.13x = 41,814.81 × 18,363.60
  4. Step 4: Simplify right side
    30,299.13x = 767,870,444.92
  5. Step 5: Solve for x
    x = 767,870,444.92/30,299.13
  6. Step 6: Final answer
    x = 25,342.99

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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.