Home / 21,095.75-29,099.41-13,925.70

Finding the Fourth Proportional to 21,095.75, 29,099.41 and 13,925.70

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Solution

The fourth proportional to 21,095.75, 29,099.41 and 13,925.70 is: 19,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.75 : 29,099.41 = 13,925.70 : x
  2. Step 2: Convert to fraction form
    21,095.75/29,099.41 = 13,925.70/x
  3. Step 3: Cross multiply
    21,095.75x = 29,099.41 × 13,925.70
  4. Step 4: Simplify right side
    21,095.75x = 405,229,653.84
  5. Step 5: Solve for x
    x = 405,229,653.84/21,095.75
  6. Step 6: Final answer
    x = 19,209.07

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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.