Home / 28,748.12-39,672.10-16,001.09

Finding the Fourth Proportional to 28,748.12, 39,672.10 and 16,001.09

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Solution

The fourth proportional to 28,748.12, 39,672.10 and 16,001.09 is: 22,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.12 : 39,672.10 = 16,001.09 : x
  2. Step 2: Convert to fraction form
    28,748.12/39,672.10 = 16,001.09/x
  3. Step 3: Cross multiply
    28,748.12x = 39,672.10 × 16,001.09
  4. Step 4: Simplify right side
    28,748.12x = 634,796,946.15
  5. Step 5: Solve for x
    x = 634,796,946.15/28,748.12
  6. Step 6: Final answer
    x = 22,081.34

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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.