Home / 28,928.66-39,922.06-16,353.40

Finding the Fourth Proportional to 28,928.66, 39,922.06 and 16,353.40

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Solution

The fourth proportional to 28,928.66, 39,922.06 and 16,353.40 is: 22,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.66 : 39,922.06 = 16,353.40 : x
  2. Step 2: Convert to fraction form
    28,928.66/39,922.06 = 16,353.40/x
  3. Step 3: Cross multiply
    28,928.66x = 39,922.06 × 16,353.40
  4. Step 4: Simplify right side
    28,928.66x = 652,861,416.00
  5. Step 5: Solve for x
    x = 652,861,416.00/28,928.66
  6. Step 6: Final answer
    x = 22,567.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.