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Finding the Fourth Proportional to 43,940.46, 65,897.06 and 15,856.88

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Solution

The fourth proportional to 43,940.46, 65,897.06 and 15,856.88 is: 23,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,940.46 : 65,897.06 = 15,856.88 : x
  2. Step 2: Convert to fraction form
    43,940.46/65,897.06 = 15,856.88/x
  3. Step 3: Cross multiply
    43,940.46x = 65,897.06 × 15,856.88
  4. Step 4: Simplify right side
    43,940.46x = 1,044,921,772.77
  5. Step 5: Solve for x
    x = 1,044,921,772.77/43,940.46
  6. Step 6: Final answer
    x = 23,780.40

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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.