Home / 19,078.12-26,314.50-18,435.88

Finding the Fourth Proportional to 19,078.12, 26,314.50 and 18,435.88

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Solution

The fourth proportional to 19,078.12, 26,314.50 and 18,435.88 is: 25,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.12 : 26,314.50 = 18,435.88 : x
  2. Step 2: Convert to fraction form
    19,078.12/26,314.50 = 18,435.88/x
  3. Step 3: Cross multiply
    19,078.12x = 26,314.50 × 18,435.88
  4. Step 4: Simplify right side
    19,078.12x = 485,130,964.26
  5. Step 5: Solve for x
    x = 485,130,964.26/19,078.12
  6. Step 6: Final answer
    x = 25,428.66

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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.