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Finding the Fourth Proportional to 43,613.71, 65,367.77 and 19,888.77

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Solution

The fourth proportional to 43,613.71, 65,367.77 and 19,888.77 is: 29,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.71 : 65,367.77 = 19,888.77 : x
  2. Step 2: Convert to fraction form
    43,613.71/65,367.77 = 19,888.77/x
  3. Step 3: Cross multiply
    43,613.71x = 65,367.77 × 19,888.77
  4. Step 4: Simplify right side
    43,613.71x = 1,300,084,542.94
  5. Step 5: Solve for x
    x = 1,300,084,542.94/43,613.71
  6. Step 6: Final answer
    x = 29,809.08

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1.5x scale

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.