Home / 19,912.95-27,479.34-10,838.50

Finding the Fourth Proportional to 19,912.95, 27,479.34 and 10,838.50

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Solution

The fourth proportional to 19,912.95, 27,479.34 and 10,838.50 is: 14,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.95 : 27,479.34 = 10,838.50 : x
  2. Step 2: Convert to fraction form
    19,912.95/27,479.34 = 10,838.50/x
  3. Step 3: Cross multiply
    19,912.95x = 27,479.34 × 10,838.50
  4. Step 4: Simplify right side
    19,912.95x = 297,834,757.89
  5. Step 5: Solve for x
    x = 297,834,757.89/19,912.95
  6. Step 6: Final answer
    x = 14,956.84

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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.