Home / 21,840.71-32,761.05-8,693.19

Finding the Fourth Proportional to 21,840.71, 32,761.05 and 8,693.19

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Solution

The fourth proportional to 21,840.71, 32,761.05 and 8,693.19 is: 13,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.71 : 32,761.05 = 8,693.19 : x
  2. Step 2: Convert to fraction form
    21,840.71/32,761.05 = 8,693.19/x
  3. Step 3: Cross multiply
    21,840.71x = 32,761.05 × 8,693.19
  4. Step 4: Simplify right side
    21,840.71x = 284,798,032.25
  5. Step 5: Solve for x
    x = 284,798,032.25/21,840.71
  6. Step 6: Final answer
    x = 13,039.78

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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.