Home / 39,964.56-59,937.12-18,903.76

Finding the Fourth Proportional to 39,964.56, 59,937.12 and 18,903.76

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Solution

The fourth proportional to 39,964.56, 59,937.12 and 18,903.76 is: 28,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,964.56 : 59,937.12 = 18,903.76 : x
  2. Step 2: Convert to fraction form
    39,964.56/59,937.12 = 18,903.76/x
  3. Step 3: Cross multiply
    39,964.56x = 59,937.12 × 18,903.76
  4. Step 4: Simplify right side
    39,964.56x = 1,133,036,931.57
  5. Step 5: Solve for x
    x = 1,133,036,931.57/39,964.56
  6. Step 6: Final answer
    x = 28,351.04

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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.