Home / 23,390.16-32,278.16-12,779.76

Finding the Fourth Proportional to 23,390.16, 32,278.16 and 12,779.76

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Solution

The fourth proportional to 23,390.16, 32,278.16 and 12,779.76 is: 17,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.16 : 32,278.16 = 12,779.76 : x
  2. Step 2: Convert to fraction form
    23,390.16/32,278.16 = 12,779.76/x
  3. Step 3: Cross multiply
    23,390.16x = 32,278.16 × 12,779.76
  4. Step 4: Simplify right side
    23,390.16x = 412,507,138.04
  5. Step 5: Solve for x
    x = 412,507,138.04/23,390.16
  6. Step 6: Final answer
    x = 17,635.93

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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.