Home / 28,963.34-39,969.50-16,217.06

Finding the Fourth Proportional to 28,963.34, 39,969.50 and 16,217.06

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Solution

The fourth proportional to 28,963.34, 39,969.50 and 16,217.06 is: 22,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.34 : 39,969.50 = 16,217.06 : x
  2. Step 2: Convert to fraction form
    28,963.34/39,969.50 = 16,217.06/x
  3. Step 3: Cross multiply
    28,963.34x = 39,969.50 × 16,217.06
  4. Step 4: Simplify right side
    28,963.34x = 648,187,779.67
  5. Step 5: Solve for x
    x = 648,187,779.67/28,963.34
  6. Step 6: Final answer
    x = 22,379.59

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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.