Home / 37,900.79-52,303.50-20,905.78

Finding the Fourth Proportional to 37,900.79, 52,303.50 and 20,905.78

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Solution

The fourth proportional to 37,900.79, 52,303.50 and 20,905.78 is: 28,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,900.79 : 52,303.50 = 20,905.78 : x
  2. Step 2: Convert to fraction form
    37,900.79/52,303.50 = 20,905.78/x
  3. Step 3: Cross multiply
    37,900.79x = 52,303.50 × 20,905.78
  4. Step 4: Simplify right side
    37,900.79x = 1,093,445,464.23
  5. Step 5: Solve for x
    x = 1,093,445,464.23/37,900.79
  6. Step 6: Final answer
    x = 28,850.20

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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.