Home / 25,888.72-35,724.36-15,816.40

Finding the Fourth Proportional to 25,888.72, 35,724.36 and 15,816.40

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Solution

The fourth proportional to 25,888.72, 35,724.36 and 15,816.40 is: 21,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,888.72 : 35,724.36 = 15,816.40 : x
  2. Step 2: Convert to fraction form
    25,888.72/35,724.36 = 15,816.40/x
  3. Step 3: Cross multiply
    25,888.72x = 35,724.36 × 15,816.40
  4. Step 4: Simplify right side
    25,888.72x = 565,030,767.50
  5. Step 5: Solve for x
    x = 565,030,767.50/25,888.72
  6. Step 6: Final answer
    x = 21,825.37

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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.