Home / 47,130.85-70,685.34-20,821.24

Finding the Fourth Proportional to 47,130.85, 70,685.34 and 20,821.24

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Solution

The fourth proportional to 47,130.85, 70,685.34 and 20,821.24 is: 31,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,130.85 : 70,685.34 = 20,821.24 : x
  2. Step 2: Convert to fraction form
    47,130.85/70,685.34 = 20,821.24/x
  3. Step 3: Cross multiply
    47,130.85x = 70,685.34 × 20,821.24
  4. Step 4: Simplify right side
    47,130.85x = 1,471,756,428.62
  5. Step 5: Solve for x
    x = 1,471,756,428.62/47,130.85
  6. Step 6: Final answer
    x = 31,227.03

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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.