Home / 26,431.11-39,646.67-13,280.36

Finding the Fourth Proportional to 26,431.11, 39,646.67 and 13,280.36

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Solution

The fourth proportional to 26,431.11, 39,646.67 and 13,280.36 is: 19,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.11 : 39,646.67 = 13,280.36 : x
  2. Step 2: Convert to fraction form
    26,431.11/39,646.67 = 13,280.36/x
  3. Step 3: Cross multiply
    26,431.11x = 39,646.67 × 13,280.36
  4. Step 4: Simplify right side
    26,431.11x = 526,521,785.77
  5. Step 5: Solve for x
    x = 526,521,785.77/26,431.11
  6. Step 6: Final answer
    x = 19,920.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.