Home / 27,189.63-37,538.49-18,127.74

Finding the Fourth Proportional to 27,189.63, 37,538.49 and 18,127.74

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Solution

The fourth proportional to 27,189.63, 37,538.49 and 18,127.74 is: 25,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,189.63 : 37,538.49 = 18,127.74 : x
  2. Step 2: Convert to fraction form
    27,189.63/37,538.49 = 18,127.74/x
  3. Step 3: Cross multiply
    27,189.63x = 37,538.49 × 18,127.74
  4. Step 4: Simplify right side
    27,189.63x = 680,487,986.71
  5. Step 5: Solve for x
    x = 680,487,986.71/27,189.63
  6. Step 6: Final answer
    x = 25,027.48

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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.