Home / 25,505.78-38,259.95-18,089.06

Finding the Fourth Proportional to 25,505.78, 38,259.95 and 18,089.06

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Solution

The fourth proportional to 25,505.78, 38,259.95 and 18,089.06 is: 27,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,505.78 : 38,259.95 = 18,089.06 : x
  2. Step 2: Convert to fraction form
    25,505.78/38,259.95 = 18,089.06/x
  3. Step 3: Cross multiply
    25,505.78x = 38,259.95 × 18,089.06
  4. Step 4: Simplify right side
    25,505.78x = 692,086,249.40
  5. Step 5: Solve for x
    x = 692,086,249.40/25,505.78
  6. Step 6: Final answer
    x = 27,134.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.