Home / 28,779.25-39,715.45-16,682.06

Finding the Fourth Proportional to 28,779.25, 39,715.45 and 16,682.06

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Solution

The fourth proportional to 28,779.25, 39,715.45 and 16,682.06 is: 23,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.25 : 39,715.45 = 16,682.06 : x
  2. Step 2: Convert to fraction form
    28,779.25/39,715.45 = 16,682.06/x
  3. Step 3: Cross multiply
    28,779.25x = 39,715.45 × 16,682.06
  4. Step 4: Simplify right side
    28,779.25x = 662,535,598.07
  5. Step 5: Solve for x
    x = 662,535,598.07/28,779.25
  6. Step 6: Final answer
    x = 23,021.30

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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.