Home / 37,665.80-51,979.40-21,751.64

Finding the Fourth Proportional to 37,665.80, 51,979.40 and 21,751.64

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Solution

The fourth proportional to 37,665.80, 51,979.40 and 21,751.64 is: 30,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,665.80 : 51,979.40 = 21,751.64 : x
  2. Step 2: Convert to fraction form
    37,665.80/51,979.40 = 21,751.64/x
  3. Step 3: Cross multiply
    37,665.80x = 51,979.40 × 21,751.64
  4. Step 4: Simplify right side
    37,665.80x = 1,130,637,196.22
  5. Step 5: Solve for x
    x = 1,130,637,196.22/37,665.80
  6. Step 6: Final answer
    x = 30,017.61

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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.