Home / 19,903.75-27,437.74-12,732.90

Finding the Fourth Proportional to 19,903.75, 27,437.74 and 12,732.90

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Solution

The fourth proportional to 19,903.75, 27,437.74 and 12,732.90 is: 17,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.75 : 27,437.74 = 12,732.90 : x
  2. Step 2: Convert to fraction form
    19,903.75/27,437.74 = 12,732.90/x
  3. Step 3: Cross multiply
    19,903.75x = 27,437.74 × 12,732.90
  4. Step 4: Simplify right side
    19,903.75x = 349,361,864.92
  5. Step 5: Solve for x
    x = 349,361,864.92/19,903.75
  6. Step 6: Final answer
    x = 17,552.56

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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.