Home / 19,077.12-26,313.12-18,434.88

Finding the Fourth Proportional to 19,077.12, 26,313.12 and 18,434.88

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Solution

The fourth proportional to 19,077.12, 26,313.12 and 18,434.88 is: 25,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077.12 : 26,313.12 = 18,434.88 : x
  2. Step 2: Convert to fraction form
    19,077.12/26,313.12 = 18,434.88/x
  3. Step 3: Cross multiply
    19,077.12x = 26,313.12 × 18,434.88
  4. Step 4: Simplify right side
    19,077.12x = 485,079,209.63
  5. Step 5: Solve for x
    x = 485,079,209.63/19,077.12
  6. Step 6: Final answer
    x = 25,427.28

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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.