Home / 37,991.55-52,428.20-20,995.32

Finding the Fourth Proportional to 37,991.55, 52,428.20 and 20,995.32

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Solution

The fourth proportional to 37,991.55, 52,428.20 and 20,995.32 is: 28,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,991.55 : 52,428.20 = 20,995.32 : x
  2. Step 2: Convert to fraction form
    37,991.55/52,428.20 = 20,995.32/x
  3. Step 3: Cross multiply
    37,991.55x = 52,428.20 × 20,995.32
  4. Step 4: Simplify right side
    37,991.55x = 1,100,746,836.02
  5. Step 5: Solve for x
    x = 1,100,746,836.02/37,991.55
  6. Step 6: Final answer
    x = 28,973.46

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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.