Home / 15,725.82-21,703.74-14,397.14

Finding the Fourth Proportional to 15,725.82, 21,703.74 and 14,397.14

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Solution

The fourth proportional to 15,725.82, 21,703.74 and 14,397.14 is: 19,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.82 : 21,703.74 = 14,397.14 : x
  2. Step 2: Convert to fraction form
    15,725.82/21,703.74 = 14,397.14/x
  3. Step 3: Cross multiply
    15,725.82x = 21,703.74 × 14,397.14
  4. Step 4: Simplify right side
    15,725.82x = 312,471,783.30
  5. Step 5: Solve for x
    x = 312,471,783.30/15,725.82
  6. Step 6: Final answer
    x = 19,869.98

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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.