Home / 27,140.48-37,432.80-18,185.12

Finding the Fourth Proportional to 27,140.48, 37,432.80 and 18,185.12

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Solution

The fourth proportional to 27,140.48, 37,432.80 and 18,185.12 is: 25,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.48 : 37,432.80 = 18,185.12 : x
  2. Step 2: Convert to fraction form
    27,140.48/37,432.80 = 18,185.12/x
  3. Step 3: Cross multiply
    27,140.48x = 37,432.80 × 18,185.12
  4. Step 4: Simplify right side
    27,140.48x = 680,719,959.94
  5. Step 5: Solve for x
    x = 680,719,959.94/27,140.48
  6. Step 6: Final answer
    x = 25,081.35

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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.