Home / 25,143.84-37,710.24-18,189.12

Finding the Fourth Proportional to 25,143.84, 37,710.24 and 18,189.12

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Solution

The fourth proportional to 25,143.84, 37,710.24 and 18,189.12 is: 27,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.84 : 37,710.24 = 18,189.12 : x
  2. Step 2: Convert to fraction form
    25,143.84/37,710.24 = 18,189.12/x
  3. Step 3: Cross multiply
    25,143.84x = 37,710.24 × 18,189.12
  4. Step 4: Simplify right side
    25,143.84x = 685,916,080.59
  5. Step 5: Solve for x
    x = 685,916,080.59/25,143.84
  6. Step 6: Final answer
    x = 27,279.69

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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.