Home / 19,211.41-28,803.11-12,955.88

Finding the Fourth Proportional to 19,211.41, 28,803.11 and 12,955.88

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Solution

The fourth proportional to 19,211.41, 28,803.11 and 12,955.88 is: 19,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.41 : 28,803.11 = 12,955.88 : x
  2. Step 2: Convert to fraction form
    19,211.41/28,803.11 = 12,955.88/x
  3. Step 3: Cross multiply
    19,211.41x = 28,803.11 × 12,955.88
  4. Step 4: Simplify right side
    19,211.41x = 373,169,636.79
  5. Step 5: Solve for x
    x = 373,169,636.79/19,211.41
  6. Step 6: Final answer
    x = 19,424.38

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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.