Home / 21,917.20-32,875.80-16,085.20

Finding the Fourth Proportional to 21,917.20, 32,875.80 and 16,085.20

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Solution

The fourth proportional to 21,917.20, 32,875.80 and 16,085.20 is: 24,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.20 : 32,875.80 = 16,085.20 : x
  2. Step 2: Convert to fraction form
    21,917.20/32,875.80 = 16,085.20/x
  3. Step 3: Cross multiply
    21,917.20x = 32,875.80 × 16,085.20
  4. Step 4: Simplify right side
    21,917.20x = 528,813,818.16
  5. Step 5: Solve for x
    x = 528,813,818.16/21,917.20
  6. Step 6: Final answer
    x = 24,127.80

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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.