Home / 37,680.36-51,999.84-20,686.30

Finding the Fourth Proportional to 37,680.36, 51,999.84 and 20,686.30

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Solution

The fourth proportional to 37,680.36, 51,999.84 and 20,686.30 is: 28,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,680.36 : 51,999.84 = 20,686.30 : x
  2. Step 2: Convert to fraction form
    37,680.36/51,999.84 = 20,686.30/x
  3. Step 3: Cross multiply
    37,680.36x = 51,999.84 × 20,686.30
  4. Step 4: Simplify right side
    37,680.36x = 1,075,684,290.19
  5. Step 5: Solve for x
    x = 1,075,684,290.19/37,680.36
  6. Step 6: Final answer
    x = 28,547.61

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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.