Home / 21,410,015.76-29,523,488.28-12,706,506.84

Finding the Fourth Proportional to 21,410,015.76, 29,523,488.28 and 12,706,506.84

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Solution

The fourth proportional to 21,410,015.76, 29,523,488.28 and 12,706,506.84 is: 17,521,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410,015.76 : 29,523,488.28 = 12,706,506.84 : x
  2. Step 2: Convert to fraction form
    21,410,015.76/29,523,488.28 = 12,706,506.84/x
  3. Step 3: Cross multiply
    21,410,015.76x = 29,523,488.28 × 12,706,506.84
  4. Step 4: Simplify right side
    21,410,015.76x = 375,140,405,770,479.88
  5. Step 5: Solve for x
    x = 375,140,405,770,479.88/21,410,015.76
  6. Step 6: Final answer
    x = 17,521,724.88

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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.