Home / 28,913.80-39,904.50-16,342.60

Finding the Fourth Proportional to 28,913.80, 39,904.50 and 16,342.60

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Solution

The fourth proportional to 28,913.80, 39,904.50 and 16,342.60 is: 22,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.80 : 39,904.50 = 16,342.60 : x
  2. Step 2: Convert to fraction form
    28,913.80/39,904.50 = 16,342.60/x
  3. Step 3: Cross multiply
    28,913.80x = 39,904.50 × 16,342.60
  4. Step 4: Simplify right side
    28,913.80x = 652,143,281.70
  5. Step 5: Solve for x
    x = 652,143,281.70/28,913.80
  6. Step 6: Final answer
    x = 22,554.74

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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.