Home / 21,295.07-29,371.56-13,737.57

Finding the Fourth Proportional to 21,295.07, 29,371.56 and 13,737.57

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Solution

The fourth proportional to 21,295.07, 29,371.56 and 13,737.57 is: 18,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.07 : 29,371.56 = 13,737.57 : x
  2. Step 2: Convert to fraction form
    21,295.07/29,371.56 = 13,737.57/x
  3. Step 3: Cross multiply
    21,295.07x = 29,371.56 × 13,737.57
  4. Step 4: Simplify right side
    21,295.07x = 403,493,777.12
  5. Step 5: Solve for x
    x = 403,493,777.12/21,295.07
  6. Step 6: Final answer
    x = 18,947.76

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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.