Home / 37,665.81-51,979.32-20,670.19

Finding the Fourth Proportional to 37,665.81, 51,979.32 and 20,670.19

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Solution

The fourth proportional to 37,665.81, 51,979.32 and 20,670.19 is: 28,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,665.81 : 51,979.32 = 20,670.19 : x
  2. Step 2: Convert to fraction form
    37,665.81/51,979.32 = 20,670.19/x
  3. Step 3: Cross multiply
    37,665.81x = 51,979.32 × 20,670.19
  4. Step 4: Simplify right side
    37,665.81x = 1,074,422,290.52
  5. Step 5: Solve for x
    x = 1,074,422,290.52/37,665.81
  6. Step 6: Final answer
    x = 28,525.13

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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.