Home / 25,928.69-35,782.08-15,318.32

Finding the Fourth Proportional to 25,928.69, 35,782.08 and 15,318.32

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Solution

The fourth proportional to 25,928.69, 35,782.08 and 15,318.32 is: 21,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,928.69 : 35,782.08 = 15,318.32 : x
  2. Step 2: Convert to fraction form
    25,928.69/35,782.08 = 15,318.32/x
  3. Step 3: Cross multiply
    25,928.69x = 35,782.08 × 15,318.32
  4. Step 4: Simplify right side
    25,928.69x = 548,121,172.80
  5. Step 5: Solve for x
    x = 548,121,172.80/25,928.69
  6. Step 6: Final answer
    x = 21,139.57

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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.