Home / 34,704.05-47,892.06-20,374.64

Finding the Fourth Proportional to 34,704.05, 47,892.06 and 20,374.64

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Solution

The fourth proportional to 34,704.05, 47,892.06 and 20,374.64 is: 28,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,704.05 : 47,892.06 = 20,374.64 : x
  2. Step 2: Convert to fraction form
    34,704.05/47,892.06 = 20,374.64/x
  3. Step 3: Cross multiply
    34,704.05x = 47,892.06 × 20,374.64
  4. Step 4: Simplify right side
    34,704.05x = 975,783,421.49
  5. Step 5: Solve for x
    x = 975,783,421.49/34,704.05
  6. Step 6: Final answer
    x = 28,117.28

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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.