Home / 15,725.94-21,645.75-13,043.22

Finding the Fourth Proportional to 15,725.94, 21,645.75 and 13,043.22

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Solution

The fourth proportional to 15,725.94, 21,645.75 and 13,043.22 is: 17,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.94 : 21,645.75 = 13,043.22 : x
  2. Step 2: Convert to fraction form
    15,725.94/21,645.75 = 13,043.22/x
  3. Step 3: Cross multiply
    15,725.94x = 21,645.75 × 13,043.22
  4. Step 4: Simplify right side
    15,725.94x = 282,330,279.32
  5. Step 5: Solve for x
    x = 282,330,279.32/15,725.94
  6. Step 6: Final answer
    x = 17,953.16

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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.