Home / 23,390.08-32,277.78-12,779.76

Finding the Fourth Proportional to 23,390.08, 32,277.78 and 12,779.76

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Solution

The fourth proportional to 23,390.08, 32,277.78 and 12,779.76 is: 17,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.08 : 32,277.78 = 12,779.76 : x
  2. Step 2: Convert to fraction form
    23,390.08/32,277.78 = 12,779.76/x
  3. Step 3: Cross multiply
    23,390.08x = 32,277.78 × 12,779.76
  4. Step 4: Simplify right side
    23,390.08x = 412,502,281.73
  5. Step 5: Solve for x
    x = 412,502,281.73/23,390.08
  6. Step 6: Final answer
    x = 17,635.78

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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.