Home / 19,727.10-27,225.96-13,026.78

Finding the Fourth Proportional to 19,727.10, 27,225.96 and 13,026.78

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Solution

The fourth proportional to 19,727.10, 27,225.96 and 13,026.78 is: 17,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,727.10 : 27,225.96 = 13,026.78 : x
  2. Step 2: Convert to fraction form
    19,727.10/27,225.96 = 13,026.78/x
  3. Step 3: Cross multiply
    19,727.10x = 27,225.96 × 13,026.78
  4. Step 4: Simplify right side
    19,727.10x = 354,666,591.21
  5. Step 5: Solve for x
    x = 354,666,591.21/19,727.10
  6. Step 6: Final answer
    x = 17,978.65

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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.