Home / 25,853.87-35,713.53-20,259.38

Finding the Fourth Proportional to 25,853.87, 35,713.53 and 20,259.38

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Solution

The fourth proportional to 25,853.87, 35,713.53 and 20,259.38 is: 27,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,853.87 : 35,713.53 = 20,259.38 : x
  2. Step 2: Convert to fraction form
    25,853.87/35,713.53 = 20,259.38/x
  3. Step 3: Cross multiply
    25,853.87x = 35,713.53 × 20,259.38
  4. Step 4: Simplify right side
    25,853.87x = 723,533,975.41
  5. Step 5: Solve for x
    x = 723,533,975.41/25,853.87
  6. Step 6: Final answer
    x = 27,985.52

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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.