Home / 19,418.07-26,780.40-16,407.90

Finding the Fourth Proportional to 19,418.07, 26,780.40 and 16,407.90

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Solution

The fourth proportional to 19,418.07, 26,780.40 and 16,407.90 is: 22,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.07 : 26,780.40 = 16,407.90 : x
  2. Step 2: Convert to fraction form
    19,418.07/26,780.40 = 16,407.90/x
  3. Step 3: Cross multiply
    19,418.07x = 26,780.40 × 16,407.90
  4. Step 4: Simplify right side
    19,418.07x = 439,410,125.16
  5. Step 5: Solve for x
    x = 439,410,125.16/19,418.07
  6. Step 6: Final answer
    x = 22,628.93

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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.