Home / 28,779.28-39,715.30-16,032.63

Finding the Fourth Proportional to 28,779.28, 39,715.30 and 16,032.63

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Solution

The fourth proportional to 28,779.28, 39,715.30 and 16,032.63 is: 22,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.28 : 39,715.30 = 16,032.63 : x
  2. Step 2: Convert to fraction form
    28,779.28/39,715.30 = 16,032.63/x
  3. Step 3: Cross multiply
    28,779.28x = 39,715.30 × 16,032.63
  4. Step 4: Simplify right side
    28,779.28x = 636,740,710.24
  5. Step 5: Solve for x
    x = 636,740,710.24/28,779.28
  6. Step 6: Final answer
    x = 22,124.97

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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.