Home / 47,000.53-70,519.25-20,686.82

Finding the Fourth Proportional to 47,000.53, 70,519.25 and 20,686.82

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Solution

The fourth proportional to 47,000.53, 70,519.25 and 20,686.82 is: 31,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,000.53 : 70,519.25 = 20,686.82 : x
  2. Step 2: Convert to fraction form
    47,000.53/70,519.25 = 20,686.82/x
  3. Step 3: Cross multiply
    47,000.53x = 70,519.25 × 20,686.82
  4. Step 4: Simplify right side
    47,000.53x = 1,458,819,259.30
  5. Step 5: Solve for x
    x = 1,458,819,259.30/47,000.53
  6. Step 6: Final answer
    x = 31,038.36

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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.