Home / 25,928.74-35,782.38-15,857.00

Finding the Fourth Proportional to 25,928.74, 35,782.38 and 15,857.00

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Solution

The fourth proportional to 25,928.74, 35,782.38 and 15,857.00 is: 21,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,928.74 : 35,782.38 = 15,857.00 : x
  2. Step 2: Convert to fraction form
    25,928.74/35,782.38 = 15,857.00/x
  3. Step 3: Cross multiply
    25,928.74x = 35,782.38 × 15,857.00
  4. Step 4: Simplify right side
    25,928.74x = 567,401,199.53
  5. Step 5: Solve for x
    x = 567,401,199.53/25,928.74
  6. Step 6: Final answer
    x = 21,883.10

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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.