Home / 28,515.60-39,346.80-16,576.20

Finding the Fourth Proportional to 28,515.60, 39,346.80 and 16,576.20

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Solution

The fourth proportional to 28,515.60, 39,346.80 and 16,576.20 is: 22,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.60 : 39,346.80 = 16,576.20 : x
  2. Step 2: Convert to fraction form
    28,515.60/39,346.80 = 16,576.20/x
  3. Step 3: Cross multiply
    28,515.60x = 39,346.80 × 16,576.20
  4. Step 4: Simplify right side
    28,515.60x = 652,220,426.16
  5. Step 5: Solve for x
    x = 652,220,426.16/28,515.60
  6. Step 6: Final answer
    x = 22,872.41

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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.