Home / 28,779.40-39,711.06-16,028.58

Finding the Fourth Proportional to 28,779.40, 39,711.06 and 16,028.58

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Solution

The fourth proportional to 28,779.40, 39,711.06 and 16,028.58 is: 22,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.40 : 39,711.06 = 16,028.58 : x
  2. Step 2: Convert to fraction form
    28,779.40/39,711.06 = 16,028.58/x
  3. Step 3: Cross multiply
    28,779.40x = 39,711.06 × 16,028.58
  4. Step 4: Simplify right side
    28,779.40x = 636,512,051.01
  5. Step 5: Solve for x
    x = 636,512,051.01/28,779.40
  6. Step 6: Final answer
    x = 22,116.93

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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.