Home / 37,911-56,900.34-19,913.88

Finding the Fourth Proportional to 37,911, 56,900.34 and 19,913.88

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Solution

The fourth proportional to 37,911, 56,900.34 and 19,913.88 is: 29,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,911 : 56,900.34 = 19,913.88 : x
  2. Step 2: Convert to fraction form
    37,911/56,900.34 = 19,913.88/x
  3. Step 3: Cross multiply
    37,911x = 56,900.34 × 19,913.88
  4. Step 4: Simplify right side
    37,911x = 1,133,106,542.72
  5. Step 5: Solve for x
    x = 1,133,106,542.72/37,911
  6. Step 6: Final answer
    x = 29,888.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.