Home / 16,689.68-23,015.40-14,064.56

Finding the Fourth Proportional to 16,689.68, 23,015.40 and 14,064.56

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Solution

The fourth proportional to 16,689.68, 23,015.40 and 14,064.56 is: 19,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.68 : 23,015.40 = 14,064.56 : x
  2. Step 2: Convert to fraction form
    16,689.68/23,015.40 = 14,064.56/x
  3. Step 3: Cross multiply
    16,689.68x = 23,015.40 × 14,064.56
  4. Step 4: Simplify right side
    16,689.68x = 323,701,474.22
  5. Step 5: Solve for x
    x = 323,701,474.22/16,689.68
  6. Step 6: Final answer
    x = 19,395.31

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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.