Home / 28,931.92-43,416.30-19,336.45

Finding the Fourth Proportional to 28,931.92, 43,416.30 and 19,336.45

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Solution

The fourth proportional to 28,931.92, 43,416.30 and 19,336.45 is: 29,016.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.92 : 43,416.30 = 19,336.45 : x
  2. Step 2: Convert to fraction form
    28,931.92/43,416.30 = 19,336.45/x
  3. Step 3: Cross multiply
    28,931.92x = 43,416.30 × 19,336.45
  4. Step 4: Simplify right side
    28,931.92x = 839,517,114.14
  5. Step 5: Solve for x
    x = 839,517,114.14/28,931.92
  6. Step 6: Final answer
    x = 29,016.99

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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.