Home / 47,190.12-70,764-13,898.52

Finding the Fourth Proportional to 47,190.12, 70,764 and 13,898.52

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Solution

The fourth proportional to 47,190.12, 70,764 and 13,898.52 is: 20,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,190.12 : 70,764 = 13,898.52 : x
  2. Step 2: Convert to fraction form
    47,190.12/70,764 = 13,898.52/x
  3. Step 3: Cross multiply
    47,190.12x = 70,764 × 13,898.52
  4. Step 4: Simplify right side
    47,190.12x = 983,514,869.28
  5. Step 5: Solve for x
    x = 983,514,869.28/47,190.12
  6. Step 6: Final answer
    x = 20,841.54

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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.