Home / 25,637.55-35,369.89-18,939.25

Finding the Fourth Proportional to 25,637.55, 35,369.89 and 18,939.25

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Solution

The fourth proportional to 25,637.55, 35,369.89 and 18,939.25 is: 26,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.55 : 35,369.89 = 18,939.25 : x
  2. Step 2: Convert to fraction form
    25,637.55/35,369.89 = 18,939.25/x
  3. Step 3: Cross multiply
    25,637.55x = 35,369.89 × 18,939.25
  4. Step 4: Simplify right side
    25,637.55x = 669,879,189.18
  5. Step 5: Solve for x
    x = 669,879,189.18/25,637.55
  6. Step 6: Final answer
    x = 26,128.83

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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.