Home / 21,557.94-29,743.02-13,057.35

Finding the Fourth Proportional to 21,557.94, 29,743.02 and 13,057.35

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Solution

The fourth proportional to 21,557.94, 29,743.02 and 13,057.35 is: 18,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.94 : 29,743.02 = 13,057.35 : x
  2. Step 2: Convert to fraction form
    21,557.94/29,743.02 = 13,057.35/x
  3. Step 3: Cross multiply
    21,557.94x = 29,743.02 × 13,057.35
  4. Step 4: Simplify right side
    21,557.94x = 388,365,022.20
  5. Step 5: Solve for x
    x = 388,365,022.20/21,557.94
  6. Step 6: Final answer
    x = 18,014.94

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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.