Home / 31,742.45-47,611.78-14,207.57

Finding the Fourth Proportional to 31,742.45, 47,611.78 and 14,207.57

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Solution

The fourth proportional to 31,742.45, 47,611.78 and 14,207.57 is: 21,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.45 : 47,611.78 = 14,207.57 : x
  2. Step 2: Convert to fraction form
    31,742.45/47,611.78 = 14,207.57/x
  3. Step 3: Cross multiply
    31,742.45x = 47,611.78 × 14,207.57
  4. Step 4: Simplify right side
    31,742.45x = 676,447,423.60
  5. Step 5: Solve for x
    x = 676,447,423.60/31,742.45
  6. Step 6: Final answer
    x = 21,310.50

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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.