Home / 37,471.12-51,711.36-20,705.20

Finding the Fourth Proportional to 37,471.12, 51,711.36 and 20,705.20

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Solution

The fourth proportional to 37,471.12, 51,711.36 and 20,705.20 is: 28,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,471.12 : 51,711.36 = 20,705.20 : x
  2. Step 2: Convert to fraction form
    37,471.12/51,711.36 = 20,705.20/x
  3. Step 3: Cross multiply
    37,471.12x = 51,711.36 × 20,705.20
  4. Step 4: Simplify right side
    37,471.12x = 1,070,694,051.07
  5. Step 5: Solve for x
    x = 1,070,694,051.07/37,471.12
  6. Step 6: Final answer
    x = 28,573.85

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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.