Home / 19,278.84-28,885.22-12,941.85

Finding the Fourth Proportional to 19,278.84, 28,885.22 and 12,941.85

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Solution

The fourth proportional to 19,278.84, 28,885.22 and 12,941.85 is: 19,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.84 : 28,885.22 = 12,941.85 : x
  2. Step 2: Convert to fraction form
    19,278.84/28,885.22 = 12,941.85/x
  3. Step 3: Cross multiply
    19,278.84x = 28,885.22 × 12,941.85
  4. Step 4: Simplify right side
    19,278.84x = 373,828,119.75
  5. Step 5: Solve for x
    x = 373,828,119.75/19,278.84
  6. Step 6: Final answer
    x = 19,390.59

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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.