Home / 19,018.58-28,419.09-14,490.75

Finding the Fourth Proportional to 19,018.58, 28,419.09 and 14,490.75

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Solution

The fourth proportional to 19,018.58, 28,419.09 and 14,490.75 is: 21,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.58 : 28,419.09 = 14,490.75 : x
  2. Step 2: Convert to fraction form
    19,018.58/28,419.09 = 14,490.75/x
  3. Step 3: Cross multiply
    19,018.58x = 28,419.09 × 14,490.75
  4. Step 4: Simplify right side
    19,018.58x = 411,813,928.42
  5. Step 5: Solve for x
    x = 411,813,928.42/19,018.58
  6. Step 6: Final answer
    x = 21,653.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.