Home / 17,718.74-26,439.30-15,857.06

Finding the Fourth Proportional to 17,718.74, 26,439.30 and 15,857.06

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Solution

The fourth proportional to 17,718.74, 26,439.30 and 15,857.06 is: 23,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.74 : 26,439.30 = 15,857.06 : x
  2. Step 2: Convert to fraction form
    17,718.74/26,439.30 = 15,857.06/x
  3. Step 3: Cross multiply
    17,718.74x = 26,439.30 × 15,857.06
  4. Step 4: Simplify right side
    17,718.74x = 419,249,487.17
  5. Step 5: Solve for x
    x = 419,249,487.17/17,718.74
  6. Step 6: Final answer
    x = 23,661.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.