Home / 43,042.47-64,567.43-11,877.72

Finding the Fourth Proportional to 43,042.47, 64,567.43 and 11,877.72

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Solution

The fourth proportional to 43,042.47, 64,567.43 and 11,877.72 is: 17,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,042.47 : 64,567.43 = 11,877.72 : x
  2. Step 2: Convert to fraction form
    43,042.47/64,567.43 = 11,877.72/x
  3. Step 3: Cross multiply
    43,042.47x = 64,567.43 × 11,877.72
  4. Step 4: Simplify right side
    43,042.47x = 766,913,795.27
  5. Step 5: Solve for x
    x = 766,913,795.27/43,042.47
  6. Step 6: Final answer
    x = 17,817.61

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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.