Home / 28,957.08-39,962.40-16,209.96

Finding the Fourth Proportional to 28,957.08, 39,962.40 and 16,209.96

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Solution

The fourth proportional to 28,957.08, 39,962.40 and 16,209.96 is: 22,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.08 : 39,962.40 = 16,209.96 : x
  2. Step 2: Convert to fraction form
    28,957.08/39,962.40 = 16,209.96/x
  3. Step 3: Cross multiply
    28,957.08x = 39,962.40 × 16,209.96
  4. Step 4: Simplify right side
    28,957.08x = 647,788,905.50
  5. Step 5: Solve for x
    x = 647,788,905.50/28,957.08
  6. Step 6: Final answer
    x = 22,370.66

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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.