Home / 47,219.91-70,813.36-13,931.14

Finding the Fourth Proportional to 47,219.91, 70,813.36 and 13,931.14

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Solution

The fourth proportional to 47,219.91, 70,813.36 and 13,931.14 is: 20,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,219.91 : 70,813.36 = 13,931.14 : x
  2. Step 2: Convert to fraction form
    47,219.91/70,813.36 = 13,931.14/x
  3. Step 3: Cross multiply
    47,219.91x = 70,813.36 × 13,931.14
  4. Step 4: Simplify right side
    47,219.91x = 986,510,832.03
  5. Step 5: Solve for x
    x = 986,510,832.03/47,219.91
  6. Step 6: Final answer
    x = 20,891.84

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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.