Home / 15,655.84-21,608.33-14,394.90

Finding the Fourth Proportional to 15,655.84, 21,608.33 and 14,394.90

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Solution

The fourth proportional to 15,655.84, 21,608.33 and 14,394.90 is: 19,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.84 : 21,608.33 = 14,394.90 : x
  2. Step 2: Convert to fraction form
    15,655.84/21,608.33 = 14,394.90/x
  3. Step 3: Cross multiply
    15,655.84x = 21,608.33 × 14,394.90
  4. Step 4: Simplify right side
    15,655.84x = 311,049,758.57
  5. Step 5: Solve for x
    x = 311,049,758.57/15,655.84
  6. Step 6: Final answer
    x = 19,867.97

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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.