Home / 21,135.02-29,166.32-11,703.58

Finding the Fourth Proportional to 21,135.02, 29,166.32 and 11,703.58

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Solution

The fourth proportional to 21,135.02, 29,166.32 and 11,703.58 is: 16,150.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135.02 : 29,166.32 = 11,703.58 : x
  2. Step 2: Convert to fraction form
    21,135.02/29,166.32 = 11,703.58/x
  3. Step 3: Cross multiply
    21,135.02x = 29,166.32 × 11,703.58
  4. Step 4: Simplify right side
    21,135.02x = 341,350,359.43
  5. Step 5: Solve for x
    x = 341,350,359.43/21,135.02
  6. Step 6: Final answer
    x = 16,150.94

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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.