Home / 28,779.48-39,715.08-16,032.64

Finding the Fourth Proportional to 28,779.48, 39,715.08 and 16,032.64

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Solution

The fourth proportional to 28,779.48, 39,715.08 and 16,032.64 is: 22,124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.48 : 39,715.08 = 16,032.64 : x
  2. Step 2: Convert to fraction form
    28,779.48/39,715.08 = 16,032.64/x
  3. Step 3: Cross multiply
    28,779.48x = 39,715.08 × 16,032.64
  4. Step 4: Simplify right side
    28,779.48x = 636,737,569.73
  5. Step 5: Solve for x
    x = 636,737,569.73/28,779.48
  6. Step 6: Final answer
    x = 22,124.71

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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.