Home / 28,985.77-39,999.92-16,239.41

Finding the Fourth Proportional to 28,985.77, 39,999.92 and 16,239.41

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Solution

The fourth proportional to 28,985.77, 39,999.92 and 16,239.41 is: 22,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.77 : 39,999.92 = 16,239.41 : x
  2. Step 2: Convert to fraction form
    28,985.77/39,999.92 = 16,239.41/x
  3. Step 3: Cross multiply
    28,985.77x = 39,999.92 × 16,239.41
  4. Step 4: Simplify right side
    28,985.77x = 649,575,100.85
  5. Step 5: Solve for x
    x = 649,575,100.85/28,985.77
  6. Step 6: Final answer
    x = 22,410.14

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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.