Home / 19,886.04-27,451.44-13,427.10

Finding the Fourth Proportional to 19,886.04, 27,451.44 and 13,427.10

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Solution

The fourth proportional to 19,886.04, 27,451.44 and 13,427.10 is: 18,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.04 : 27,451.44 = 13,427.10 : x
  2. Step 2: Convert to fraction form
    19,886.04/27,451.44 = 13,427.10/x
  3. Step 3: Cross multiply
    19,886.04x = 27,451.44 × 13,427.10
  4. Step 4: Simplify right side
    19,886.04x = 368,593,230.02
  5. Step 5: Solve for x
    x = 368,593,230.02/19,886.04
  6. Step 6: Final answer
    x = 18,535.28

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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.