Home / 25,953.71-35,778.80-18,488.75

Finding the Fourth Proportional to 25,953.71, 35,778.80 and 18,488.75

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Solution

The fourth proportional to 25,953.71, 35,778.80 and 18,488.75 is: 25,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,953.71 : 35,778.80 = 18,488.75 : x
  2. Step 2: Convert to fraction form
    25,953.71/35,778.80 = 18,488.75/x
  3. Step 3: Cross multiply
    25,953.71x = 35,778.80 × 18,488.75
  4. Step 4: Simplify right side
    25,953.71x = 661,505,196.06
  5. Step 5: Solve for x
    x = 661,505,196.06/25,953.71
  6. Step 6: Final answer
    x = 25,487.89

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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.