Home / 19,451.52-26,838.72-13,167.36

Finding the Fourth Proportional to 19,451.52, 26,838.72 and 13,167.36

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Solution

The fourth proportional to 19,451.52, 26,838.72 and 13,167.36 is: 18,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.52 : 26,838.72 = 13,167.36 : x
  2. Step 2: Convert to fraction form
    19,451.52/26,838.72 = 13,167.36/x
  3. Step 3: Cross multiply
    19,451.52x = 26,838.72 × 13,167.36
  4. Step 4: Simplify right side
    19,451.52x = 353,395,088.18
  5. Step 5: Solve for x
    x = 353,395,088.18/19,451.52
  6. Step 6: Final answer
    x = 18,167.99

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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.