Home / 21,890.02-30,208.17-11,954.02

Finding the Fourth Proportional to 21,890.02, 30,208.17 and 11,954.02

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Solution

The fourth proportional to 21,890.02, 30,208.17 and 11,954.02 is: 16,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.02 : 30,208.17 = 11,954.02 : x
  2. Step 2: Convert to fraction form
    21,890.02/30,208.17 = 11,954.02/x
  3. Step 3: Cross multiply
    21,890.02x = 30,208.17 × 11,954.02
  4. Step 4: Simplify right side
    21,890.02x = 361,109,068.34
  5. Step 5: Solve for x
    x = 361,109,068.34/21,890.02
  6. Step 6: Final answer
    x = 16,496.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.