Home / 43,217.40-64,800.18-16,890.78

Finding the Fourth Proportional to 43,217.40, 64,800.18 and 16,890.78

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Solution

The fourth proportional to 43,217.40, 64,800.18 and 16,890.78 is: 25,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,217.40 : 64,800.18 = 16,890.78 : x
  2. Step 2: Convert to fraction form
    43,217.40/64,800.18 = 16,890.78/x
  3. Step 3: Cross multiply
    43,217.40x = 64,800.18 × 16,890.78
  4. Step 4: Simplify right side
    43,217.40x = 1,094,525,584.34
  5. Step 5: Solve for x
    x = 1,094,525,584.34/43,217.40
  6. Step 6: Final answer
    x = 25,326.04

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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.