Home / 19,605.96-27,041.82-12,438.06

Finding the Fourth Proportional to 19,605.96, 27,041.82 and 12,438.06

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Solution

The fourth proportional to 19,605.96, 27,041.82 and 12,438.06 is: 17,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.96 : 27,041.82 = 12,438.06 : x
  2. Step 2: Convert to fraction form
    19,605.96/27,041.82 = 12,438.06/x
  3. Step 3: Cross multiply
    19,605.96x = 27,041.82 × 12,438.06
  4. Step 4: Simplify right side
    19,605.96x = 336,347,779.67
  5. Step 5: Solve for x
    x = 336,347,779.67/19,605.96
  6. Step 6: Final answer
    x = 17,155.38

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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.