Home / 23,390.40-32,278.37-12,779.81

Finding the Fourth Proportional to 23,390.40, 32,278.37 and 12,779.81

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Solution

The fourth proportional to 23,390.40, 32,278.37 and 12,779.81 is: 17,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.40 : 32,278.37 = 12,779.81 : x
  2. Step 2: Convert to fraction form
    23,390.40/32,278.37 = 12,779.81/x
  3. Step 3: Cross multiply
    23,390.40x = 32,278.37 × 12,779.81
  4. Step 4: Simplify right side
    23,390.40x = 412,511,210.42
  5. Step 5: Solve for x
    x = 412,511,210.42/23,390.40
  6. Step 6: Final answer
    x = 17,635.92

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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.