Home / 47,784.75-71,685.77-19,689.18

Finding the Fourth Proportional to 47,784.75, 71,685.77 and 19,689.18

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Solution

The fourth proportional to 47,784.75, 71,685.77 and 19,689.18 is: 29,537.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,784.75 : 71,685.77 = 19,689.18 : x
  2. Step 2: Convert to fraction form
    47,784.75/71,685.77 = 19,689.18/x
  3. Step 3: Cross multiply
    47,784.75x = 71,685.77 × 19,689.18
  4. Step 4: Simplify right side
    47,784.75x = 1,411,434,078.19
  5. Step 5: Solve for x
    x = 1,411,434,078.19/47,784.75
  6. Step 6: Final answer
    x = 29,537.33

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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.