Home / 28,779.63-39,715.29-16,032.80

Finding the Fourth Proportional to 28,779.63, 39,715.29 and 16,032.80

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Solution

The fourth proportional to 28,779.63, 39,715.29 and 16,032.80 is: 22,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.63 : 39,715.29 = 16,032.80 : x
  2. Step 2: Convert to fraction form
    28,779.63/39,715.29 = 16,032.80/x
  3. Step 3: Cross multiply
    28,779.63x = 39,715.29 × 16,032.80
  4. Step 4: Simplify right side
    28,779.63x = 636,747,157.82
  5. Step 5: Solve for x
    x = 636,747,157.82/28,779.63
  6. Step 6: Final answer
    x = 22,124.92

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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.