Home / 21,182.41-31,723.50-18,393.93

Finding the Fourth Proportional to 21,182.41, 31,723.50 and 18,393.93

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Solution

The fourth proportional to 21,182.41, 31,723.50 and 18,393.93 is: 27,547.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.41 : 31,723.50 = 18,393.93 : x
  2. Step 2: Convert to fraction form
    21,182.41/31,723.50 = 18,393.93/x
  3. Step 3: Cross multiply
    21,182.41x = 31,723.50 × 18,393.93
  4. Step 4: Simplify right side
    21,182.41x = 583,519,907.33
  5. Step 5: Solve for x
    x = 583,519,907.33/21,182.41
  6. Step 6: Final answer
    x = 27,547.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.