Home / 28,779.80-39,715.98-16,033.12

Finding the Fourth Proportional to 28,779.80, 39,715.98 and 16,033.12

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Solution

The fourth proportional to 28,779.80, 39,715.98 and 16,033.12 is: 22,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.80 : 39,715.98 = 16,033.12 : x
  2. Step 2: Convert to fraction form
    28,779.80/39,715.98 = 16,033.12/x
  3. Step 3: Cross multiply
    28,779.80x = 39,715.98 × 16,033.12
  4. Step 4: Simplify right side
    28,779.80x = 636,771,073.26
  5. Step 5: Solve for x
    x = 636,771,073.26/28,779.80
  6. Step 6: Final answer
    x = 22,125.63

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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.