Home / 37,405.09-51,618.77-20,638.13

Finding the Fourth Proportional to 37,405.09, 51,618.77 and 20,638.13

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Solution

The fourth proportional to 37,405.09, 51,618.77 and 20,638.13 is: 28,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.09 : 51,618.77 = 20,638.13 : x
  2. Step 2: Convert to fraction form
    37,405.09/51,618.77 = 20,638.13/x
  3. Step 3: Cross multiply
    37,405.09x = 51,618.77 × 20,638.13
  4. Step 4: Simplify right side
    37,405.09x = 1,065,314,782.51
  5. Step 5: Solve for x
    x = 1,065,314,782.51/37,405.09
  6. Step 6: Final answer
    x = 28,480.48

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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.