Home / 23,390.28-32,277.78-12,779.64

Finding the Fourth Proportional to 23,390.28, 32,277.78 and 12,779.64

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Solution

The fourth proportional to 23,390.28, 32,277.78 and 12,779.64 is: 17,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.28 : 32,277.78 = 12,779.64 : x
  2. Step 2: Convert to fraction form
    23,390.28/32,277.78 = 12,779.64/x
  3. Step 3: Cross multiply
    23,390.28x = 32,277.78 × 12,779.64
  4. Step 4: Simplify right side
    23,390.28x = 412,498,408.40
  5. Step 5: Solve for x
    x = 412,498,408.40/23,390.28
  6. Step 6: Final answer
    x = 17,635.46

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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.