Home / 25,786.72-35,588.95-15,718.32

Finding the Fourth Proportional to 25,786.72, 35,588.95 and 15,718.32

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Solution

The fourth proportional to 25,786.72, 35,588.95 and 15,718.32 is: 21,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.72 : 35,588.95 = 15,718.32 : x
  2. Step 2: Convert to fraction form
    25,786.72/35,588.95 = 15,718.32/x
  3. Step 3: Cross multiply
    25,786.72x = 35,588.95 × 15,718.32
  4. Step 4: Simplify right side
    25,786.72x = 559,398,504.56
  5. Step 5: Solve for x
    x = 559,398,504.56/25,786.72
  6. Step 6: Final answer
    x = 21,693.28

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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.