Home / 25,643.88-35,366.40-16,688.16

Finding the Fourth Proportional to 25,643.88, 35,366.40 and 16,688.16

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Solution

The fourth proportional to 25,643.88, 35,366.40 and 16,688.16 is: 23,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.88 : 35,366.40 = 16,688.16 : x
  2. Step 2: Convert to fraction form
    25,643.88/35,366.40 = 16,688.16/x
  3. Step 3: Cross multiply
    25,643.88x = 35,366.40 × 16,688.16
  4. Step 4: Simplify right side
    25,643.88x = 590,200,141.82
  5. Step 5: Solve for x
    x = 590,200,141.82/25,643.88
  6. Step 6: Final answer
    x = 23,015.24

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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.