Home / 28,779.12-39,716.39-16,032.30

Finding the Fourth Proportional to 28,779.12, 39,716.39 and 16,032.30

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Solution

The fourth proportional to 28,779.12, 39,716.39 and 16,032.30 is: 22,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.12 : 39,716.39 = 16,032.30 : x
  2. Step 2: Convert to fraction form
    28,779.12/39,716.39 = 16,032.30/x
  3. Step 3: Cross multiply
    28,779.12x = 39,716.39 × 16,032.30
  4. Step 4: Simplify right side
    28,779.12x = 636,744,899.94
  5. Step 5: Solve for x
    x = 636,744,899.94/28,779.12
  6. Step 6: Final answer
    x = 22,125.24

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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.