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Finding the Fourth Proportional to 34,345.80, 47,400.21 and 19,238.22

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Solution

The fourth proportional to 34,345.80, 47,400.21 and 19,238.22 is: 26,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,345.80 : 47,400.21 = 19,238.22 : x
  2. Step 2: Convert to fraction form
    34,345.80/47,400.21 = 19,238.22/x
  3. Step 3: Cross multiply
    34,345.80x = 47,400.21 × 19,238.22
  4. Step 4: Simplify right side
    34,345.80x = 911,895,668.03
  5. Step 5: Solve for x
    x = 911,895,668.03/34,345.80
  6. Step 6: Final answer
    x = 26,550.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.