Home / 19,633.11-27,079.88-12,916.59

Finding the Fourth Proportional to 19,633.11, 27,079.88 and 12,916.59

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Solution

The fourth proportional to 19,633.11, 27,079.88 and 12,916.59 is: 17,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,633.11 : 27,079.88 = 12,916.59 : x
  2. Step 2: Convert to fraction form
    19,633.11/27,079.88 = 12,916.59/x
  3. Step 3: Cross multiply
    19,633.11x = 27,079.88 × 12,916.59
  4. Step 4: Simplify right side
    19,633.11x = 349,779,707.21
  5. Step 5: Solve for x
    x = 349,779,707.21/19,633.11
  6. Step 6: Final answer
    x = 17,815.81

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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.