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Finding the Fourth Proportional to 32,642.94, 45,043.68 and 19,218.42

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Solution

The fourth proportional to 32,642.94, 45,043.68 and 19,218.42 is: 26,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,642.94 : 45,043.68 = 19,218.42 : x
  2. Step 2: Convert to fraction form
    32,642.94/45,043.68 = 19,218.42/x
  3. Step 3: Cross multiply
    32,642.94x = 45,043.68 × 19,218.42
  4. Step 4: Simplify right side
    32,642.94x = 865,668,360.59
  5. Step 5: Solve for x
    x = 865,668,360.59/32,642.94
  6. Step 6: Final answer
    x = 26,519.31

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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.