Home / 28,779.52-39,704.16-22,511.20

Finding the Fourth Proportional to 28,779.52, 39,704.16 and 22,511.20

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Solution

The fourth proportional to 28,779.52, 39,704.16 and 22,511.20 is: 31,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.52 : 39,704.16 = 22,511.20 : x
  2. Step 2: Convert to fraction form
    28,779.52/39,704.16 = 22,511.20/x
  3. Step 3: Cross multiply
    28,779.52x = 39,704.16 × 22,511.20
  4. Step 4: Simplify right side
    28,779.52x = 893,788,286.59
  5. Step 5: Solve for x
    x = 893,788,286.59/28,779.52
  6. Step 6: Final answer
    x = 31,056.40

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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.