Home / 28,967.11-39,971.10-16,219.29

Finding the Fourth Proportional to 28,967.11, 39,971.10 and 16,219.29

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Solution

The fourth proportional to 28,967.11, 39,971.10 and 16,219.29 is: 22,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.11 : 39,971.10 = 16,219.29 : x
  2. Step 2: Convert to fraction form
    28,967.11/39,971.10 = 16,219.29/x
  3. Step 3: Cross multiply
    28,967.11x = 39,971.10 × 16,219.29
  4. Step 4: Simplify right side
    28,967.11x = 648,302,862.52
  5. Step 5: Solve for x
    x = 648,302,862.52/28,967.11
  6. Step 6: Final answer
    x = 22,380.65

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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.