Home / 21,927.90-32,940.45-21,042.30

Finding the Fourth Proportional to 21,927.90, 32,940.45 and 21,042.30

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Solution

The fourth proportional to 21,927.90, 32,940.45 and 21,042.30 is: 31,610.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.90 : 32,940.45 = 21,042.30 : x
  2. Step 2: Convert to fraction form
    21,927.90/32,940.45 = 21,042.30/x
  3. Step 3: Cross multiply
    21,927.90x = 32,940.45 × 21,042.30
  4. Step 4: Simplify right side
    21,927.90x = 693,142,831.04
  5. Step 5: Solve for x
    x = 693,142,831.04/21,927.90
  6. Step 6: Final answer
    x = 31,610.09

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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.