Home / 20,263.72-30,411.08-13,241.76

Finding the Fourth Proportional to 20,263.72, 30,411.08 and 13,241.76

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Solution

The fourth proportional to 20,263.72, 30,411.08 and 13,241.76 is: 19,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.72 : 30,411.08 = 13,241.76 : x
  2. Step 2: Convert to fraction form
    20,263.72/30,411.08 = 13,241.76/x
  3. Step 3: Cross multiply
    20,263.72x = 30,411.08 × 13,241.76
  4. Step 4: Simplify right side
    20,263.72x = 402,696,222.70
  5. Step 5: Solve for x
    x = 402,696,222.70/20,263.72
  6. Step 6: Final answer
    x = 19,872.77

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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.